NTP 2 SECTION 2

UNCLASSIFIED NTP 2 SECTION 2 (E) NAVAL TELECOMMUNICATIONS PROCEDURES NAVY ULTRA HIGH FREQUENCY SATELLITE COMMUNICATION...

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UNCLASSIFIED

NTP 2 SECTION 2 (E)

NAVAL TELECOMMUNICATIONS PROCEDURES NAVY ULTRA HIGH FREQUENCY SATELLITE COMMUNICATIONS

NTP 2 SECTION 2 (E) NAVAL COMPUTER AND TELECOMMUNICATIONS COMMAND 4401 MASSACHUSETTS AVE., N.W. WASHINGTON, D.C. 20394-5000

DISTRIBUTION AUTHORIZED TO U.S. GOVERNMENT AGENCIES ONLY FOR OPERATIONAL USE (1 JULY 1992). OTHER REQUESTS FOR THIS DOCUMENT SHALL BE REFERRED TO COMNAVCOMTELCOM.

JULY 1992 THIS PUBLICATION CONTAINS U.S. MILITARY INFORMATION AND RELEASE TO OTHER THAN MILITARY AGENCIES WILL BE ON A NEED-TOKNOW BASIS

UNCLASSIFIED

I

U.S.

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NTP 2 SECTION 2 (E)

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NTP 2 SECTION 2(E) FOREWORD 1. Naval Telecommunications Publication (NTP) 2, Section 2 (E) Navy Ultra High Frequency Satellite Communications is basically an unclassified procedure document published 1 July 1992. There are two classified annexes issued under separate cover. 2. This NTP may be carried in an aircraft. There are no specific requirements for storage or safeguarding of this publication, or accounting for loss or compromise beyond that associated with any official, unclassified naval publication. 3. Extracts of this NTP are permitted. Superseded editions of this NTP should be destroyed upon receipt of this July 1992 version. 4. This publication information.

contains

allied

military

5. Additional copies of the classified annexes may be ordered through the supply system from Naval Publications and Forms Center (NAVPUBFORMCEN), Philadelphia, PA.

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NTP 2 SECTION 2(E) DEPARTMENT OF THE NAVY NAVAL COMPUTER AND TELECOMMUNICATIONS COMMAND 4401 MASSACHUSETTS AVENUE, N.W. WASHINGTON, D.C. 20394-5000

1 July 1992

LETTER OF PROMULGATION 1. NTP 2, Section 2 (E) Navy Ultra High Frequency Satellite Communications, was developed under the direction of the Commander, Naval Computer and Telecommunications Command, and is promulgated for use by the U.S. Navy and U.S. Marine Corps. This publication is designed to provide information and guidance relative to employment of UHF satellite communications for naval operations. The procedures established herein are applicable for all elements concerned with management, control, utilization, testing, and operation of naval UHF satellite communications resources. 2. NTP 2, Section 2 (E) is an unclassified, nonregistered publication. Two classified annexes are issued under separate cover. 3. NTP 2, Section 2 (E) is EFFECTIVE UPON RECEIPT and supersedes NTP 2, Section 2 (D). 4. Comments or recommendations concerning this publication should be addressed, via the normal military chain of command, to the Commander, Naval Computer and Telecommunications Command (Code N321), 4401 Massachusetts Avenue, N.W., Washington, D.C. 20394-5000. The last page of this document is a Feedback Report form which may be duplicated and used for providing comments. 5. This NTP has been reviewed and approved in accordance with SECNAVINST 5600.16A.

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NTP 2 SECTION 2 (E)

RECORD OF CHANGES AND CORRECTIONS Enter Change or Correction in Appropriate Column Identification of Change or Correction; Reg. No. (if any) and date of same Change

Date Entered

Correction

By whom entered (Signature; rank, grade or rate; name of command)

ORIGINAL VII

NTP 2 SECTION 2 (E)

RECORD OF CHANGES AND CORRECTIONS Enter Change or Correction in Appropriate Column Identification of Change or Correction; Reg. No. (if any) and date of same Change

Date Entered

Correction

By whom entered (Signature; rank, grade or rate; name of command)

ORIGINAL VIII

NTP 2 SECTION 2(E) NAVY ULTRA HIGH FREQUENCY SATELLITE COMMUNICATIONS TABLE OF CONTENTS Title Page Foreword

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Letter of Promulgation

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Record of Changes and Corrections . . . . . . . . . . . . . . VII Table of Contents . . . . . . . . . . . . . . . . . . . . . .

PARAGRAPH

SUBJECT

IX

PAGE

CHAPTER 1 INTRODUCTION 101 102 103 104 105 106

Purpose . . . . . . Scope . . . . . . . Direction . . . . . Background . . . . Future Applications Related Documents .

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1-1 1-1 1-1 1-4 1-6 1-8

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Subsystems . . . . . . . . . . . . . . . . . . - UHF SATCOM Subsystems . . . . . . . . . . . .

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. . 2-1 . . 2-1 . 2-26 . 2-26 . 2-36 . 2-42 . 2-49 . 2-56

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CHAPTER 2 SYSTEM DESCRIPTION 201 202 203 204 205 206 207 208

General . . . . . . Space Segment . . . Earth Segment . . . RF Terminals . . . Primary UHF Antenna UHF SATCOM System . Future Developments Baseband Equipment

CHAPTER 3 NAVY ULTRA HIGH FREQUENCY

(UHF)

SATELLITE COMMUNICATIONS (SATCOM) CONTROL 301 302 303 304 305

General . . . . . . . . . . . . . . . . . . Authority . . . . . . . . . . . . . . . . . Responsibilities for Operational Management System Control . . . . . . . . . . . . . . Satellite Channelization . . . . . . . . .

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3-1 3-1 3-2 3-6 3-10

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NTP 2 SECTION 2(E) PARAGRAPH

SUBJECT

PAGE

CHAPTER 4 ULTRA HIGH FREQUENCY (UHF) OPERATIONS PROCEDURES 401 402 403 7404 405 406

General . . . . . . . . . . . . . . . Satellite Access Procedures . . . . . Priority Structure . . . . . . . . . Power Control . . . . . . . . . . . . Radio Frequency Interference (RFI) . Crisis and Contingency Communications

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4-1 4-2 . 44-9 4-10 4-13

CHAPTER 5 ADMINISTRATIVE PROCEDURES 501 502

503 504 505

General . . . . . . . . . . . . . . . . . Integrated MILSATCOM (Military Satellite Communications) Management Information System (IMMIS) . . . . . . . . . . . . ISDB Submissions . . . . . . . . . . . . Reporting Requirements . . . . . . . . . Operational Training . . . . . . . . . .

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5-1 5-2 5-2 5-3

ANNEXES A B

FLEET SATELLITE BROADCAST . . . . . . . . . . . . . . A-1 OFFICER IN TACTICAL COMMAND INFORMATION EXCHANGE SUBSYSTEM (OTCIXS)/TACTICAL DATA INFORMATION EXCHANGE SUBSYSTEM (TADIXS) . . . . . . . . . . . . B-1 C COMMON USER DIGITAL INFORMATION EXCHANGE SUBSYSTEM (CUDIXS) AND NAVAL MODULAR AUTOMATED COMMUNICATIONS SUBSYSTEM (NAVMACS) . . . . . . . . . . . . . . . . C-1 D TACTICAL INTELLIGENCE SUBSYSTEM (TACTICAL) CONFIDENTIAL ISSUED UNDER SEPARATE COVER . . . . . D-1 E DEMAND ASSIGNED MULTIPLE ACCESS (DAMA) SUBSYSTEM . . . . . . . . . . . . . . . . . . . . . E-1 F SUBMARINE SATELLITE INFORMATION EXCHANGE SUBSYSTEM II (SSIXS II) . . . . . . . . . . . . . . . . . . . F-1 G FLEET IMAGERY SUPPORT TERMINAL (FIST) . . . . . . . . G-1 H PROCEDURES FOR THE TACTICAL RECEIVE EQUIPMENT (TRE) AND TACTICAL RELATED APPLICATIONS (TRAP) BROADCAST, SECRET ISSUED UNDER SEPARATE COVER . . . . . . . . H-1 I ACRONYMS . . . . . . . . . . . . . . . . . . . . . . I-1 J GLOSSARY . . . . . . . . . . . . . . . . . . . . . . J-1 INDEX . . . . . . . . . . . . . . . . . . . . . . . . INDEX-1 LIST OF EFFECTIVE PAGES . . . . . . . . . . . . . . . . . . LEP-1 COMMUNICATIONS PROCEDURES FEEDBACK REPORT

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NTP 2 SECTION 2(E) PARAGRAPH

SUBJECT

PAGE

LIST OF FIGURES 1-1 1-2

FLTSATCOM Relationships . . . . . . . . . . . . . . . 1-2 Pillars of the Copernicus Architecture . . . . . . . 1-8

2-1 2-2 2-3 2-4 2-5 2-6 2-7 2-8 2-9 2-10 2-11 2-12

2-14 2-15 2-16 2-17 2-18 2-19 2-20 2-21 2-22

FLTSAT Coverage Areas . . . . . . . . . . . . Deployed FLTSAT . . . . . . . . . . . . . . . FLTSAT Communications Subsystem Block Diagram LEASAT Coverage Areas . . . . . . . . . . . . Deployed LEASAT . . . . . . . . . . . . . . . LEASAT Communications Subsystem Block Diagram UFO Deployed Satellite . . . . . . . . . . . GAPFILLER Coverage Areas . . . . . . . . . . Deployed GAPFILLER . . . . . . . . . . . . . Deployed INMARSAT . . . . . . . . . . . . . . AN/FSC-79 Antenna . . . . . . . . . . . . . . AN/WSC-5(V) Communications Subsystem Block Diagram . . . . . . . . . . . . . . . . . . AN/WSC-3(V) Communications Subsystem Block Diagram . . . . . . . . . . . . . . . . . . OE-82B/WSC-1(V) Antenna Group . . . . . . . . OE-82C/WSC-1(V) Antenna Group . . . . . . . . AN/WSC-5(V) Shore Station Antenna . . . . . . HR9NP Antenna . . . . . . . . . . . . . . . . Andrew 58622 Antenna . . . . . . . . . . . . TACO H-124 Antenna . . . . . . . . . . . . . TACO H-084 Antenna . . . . . . . . . . . . . HSFB Block Diagram . . . . . . . . . . . . . Mini-DAMA Configuration . . . . . . . . . . .

3-1

FLTSATCOM Control System

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Equatorial Satellite Antenna Pointing Group . . . . . 4-6

A-1

Fleet Satellite Broadcast Subsystem . . . . . . . . . A-3

B-1 B-2 B-3 B-4

TACTINTEL Shore Configuration TADIXS A Network . . . . . . OTCIXS Block Diagram . . . . TADIXS A Block Diagram . . .

C-1

CUDIXS and NAVMACS

D-1 D-2

TACINTEL Shore Configuration . . . . . . . . . . . . D-3 TACINTEL Subscriber Configuration . . . . . . . . . . D-5

E-1 E-2 E-3 E-4 E-5

A Typical OK-454(V) WSC A Typical Ok-455(V) WSC A Typical OK-481(V)/FSC OW-101/FSC Installation Basic DAMA Frame Format

2-13

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2-4 2-4 2-7 2-9 2-9 2-14 2-14 2-19 2-19 2-23 2-27

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2-29 2-37 2-38 2-39 2-40 2-40 2-41 2-41 2-53 2-55

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B-1 B-2 B-3 B-5

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Installation Installation Installation . . . . . . . . . . . . . .

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E-4 E-5 E-6 E-7 E-8

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NTP 2 SECTION 2(E) PARAGRAPH

SUBJECT

PAGE

LIST OF FIGURES (Continued) E-6

Typical DAMA Frame Format . . . . . . . . . . . . .

F-1

SSIXS . . . . . . . . . . . . . . . . . . . . . . . . F-2

G-1 G-2 G-3

Fundamental FIST Satellite Circuit . . . . . . . . . G-2 FIST UHF SATCOM Shore/Afloat Configurations . . . . . G-3 Functional Block Diagram . . . . . . . . . . . . . . G-4

H-1 H-2

Worldwide TRAP Network . . . TRAP Offset Frequency Concept Sharing Time . . . . . . . TRAP to TADIXS A Gateways . .

H-3

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E-10

. . . . . . H-3 Time . . . . . . H-5 . . . . . . H-6

LIST OF TABLES 2-1 2-2 2-3 2-4 2-5 2-6 2-7 2-8 2-9 2-10 2-11 2-12 2-13 2-14 2-15

FLTSAT, LEASAT, and UFO Key Characteristics FLTSAT Frequency Plan . . . . . . . . . . . FLTSAT Channel 23 Wideband Frequency Plan . LEASAT Frequency Plan . . . . . . . . . . . LEASAT Channel 2 Wideband Frequency Plan . Channel 1 Frequency Plan . . . . . . . . . UFO Frequency Plan . . . . . . . . . . . . GAPFILLER 500-kHz Bandwidth Frequencies . . INMARSAT Frequency Plan . . . . . . . . . . NATO IV Characteristics . . . . . . . . . . NATO Terminals . . . . . . . . . . . . . . SKYNET 4 Payload Characteristics . . . . . AN/WSC-3 Variations . . . . . . . . . . . . AN/TSC-96(V) Terminal Equipment . . . . . . ON-143(V)/USQ Variations . . . . . . . . .

3-1 3-2 3-3

U.S. Navy UHF SATCOM Control Activities . . . . . . . 3-5 FLTSAT Channel Allocation . . . . . . . . . . . . . 3-10 LEASAT Channel Allocation . . . . . . . . . . . . . 3-11

4-1 4-2

User Priority Values . . . . . . . . . . . . . . . . 4-8 Satellite Identification Data . . . . . . . . . . . 4-12

5-1

PQS for UHF SATCOM

A-1 A-2

A-4

Fleet Satellite Broadcast Fleet Satellite Broadcast Configuration . . . . . Fleet Satellite Broadcast Installations . . . . . BCS/ABCS Assignments . .

D-1

TACINTEL Nets and Link Control Facilities . . . . . . D-2

A-3

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. . . . . . . . . . . . . . . . . 5-6 Transmission Modes Subsystem Equipment . . . . . . . . . . RF Terminal . . . . . . . . . . . . . . . . . . . .

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NTP 2 SECTION 2(E) Paragraph

Subject

Page

LIST OF TABLES (Continued) E-1

DAMA Control-Monitor Group Configurations . . . . . . E-2

F-1 F-2 H-1 H-2 H-3 H-4 H-5

SSIXS II Equipment . . . . . . . . . . . . . . . . . F-4 SSIXS II Shore Locations . . . . . . . . . . . . . . F-5 TRAP Broadcast Node Locations and Functions . . . . . .H-4 FLTSATCOM Space Assets . . . . . . . . . . . . . . .H-8 TRAP Management . . . . . . . . . . . . . . . . . . H-12 TRAP Broadcast Nodes . . . . . . . . . . . . . . . H-13 NCTAMS/FTOC . . . . . . . . . . . . . . . . . . . . H-14

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ORIGINAL

NTP 2 SECTION 2(E) CHAPTER 1 INTRODUCTION 101.

PURPOSE

The purpose of this section is to promulgate information concerning direction, management, and control of the ultra high frequency (UHF) satellite communications (SATCOM) system. It is applicable to airborne, afloat, and ashore (fixed or mobile) subscribers of the Fleet Satellite Communications (FLTSATCOM) system (including Fleet Satellite (FLTSAT), Leased Satellite (LEASAT), GAPFILLER, and UHF Follow-on (UFO)).

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SCOPE

This section of the Naval Telecommunications Procedures 2 (NTP 2) is intended as a source of information to assist in the planning of FLTSATCOM operations. It is an applicable information source for naval staffs at all echelons and for supervisors of terminal operators. It is intended to complement existing directives, publications, and other NTP's. NTP 2, Sections 1 and 3 provide operating procedures for super high frequency (SHF) and extremely high frequency (EHF) SATCOM, respectively.

103.

DIRECTION

a. The FLTSATCOM system is a resource of the Department of Defense (DOD), which is managed and operated by the U.S. Navy in accordance with priorities established by the Chairman of the Joint Chiefs of Staff (CJCS). U.S. Air Force capabilities are employed to execute stationkeeping tasks for the space segment. It is in this joint context that the policies and procedures which govern FLTSATCOM system operations must be considered. The relationships of these parties are reflected in figure 1-1 and described in the following paragraphs. b.

Chairman of the Joint Chiefs of Staff.

1-1

The

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NTP 2 SECTION 2(E) Chairman of the Joint Chiefs of Staff allocates military satellite communications (MILSATCOM) resources to satisfy national defense requirements and specifies operational procedures and responsibilities for system managers, operators, and users. The Chairman of the Joint Chiefs of Staff also recommends to the Secretary of Defense those actions required for shared use of MILSATCOM assets and services and reviews proposed cooperative agreements between the Department of Defense and other agencies or governments relative to shared use. The Chairman of the Joint Chiefs of Staff also reviews and approves user connectivity requirements, defines the process for requirements documentation, and approves positioning/repositioning of satellites.

Figure 1-1 FLTSATCOM Relationships

c.

Commander

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NTP 2 SECTION 2(E) (USCINCSPACE). This unified commander is responsible to the Chairman of the Joint Chiefs of Staff for maintaining the health, status, and survivability of the SATCOM space segment. In this role, USCINCSPACE plans and executes UHF spacecraft tracking, stationkeeping, ephemeris data generation, and payload control. d. Defense Information Systems Agency (DISA). This agency (formerly the Defense Communications Agency) is the DOD-designated manager of the Defense Communications System (DCS). DISA designs, engineers, and develops the DCS to satisfy validated requirements. DISA has overall responsibility for planning, developing, and supporting the command, control, communications (C3), and information systems that serve the needs of the National Command Authorities. The Director, DISA is responsible to the Chairman of the Joint Chiefs of Staff for operational matters as well as requirements associated with the joint planning process. e. Chief of Naval Operations (CNO). The Department of the Navy (DON) is the FLTSATCOM system manager. Acting for DON, CNO approves and directs the implementation of the FLTSATCOM system programs. Within the Navy staff, the Director, Space and Electronic Warfare (OP-094) is tasked with overall responsibility for SATCOM planning and development, and for the sponsorship of the FLTSATCOM program in the budgeting process. The Director, Information Transfer Division (OP-941) provides policy for operation, maintenance, and management of the Naval Computer and Telecommunications System (NCTS). OP-941 sponsors and authorizes development and procurement of general communications equipment, and determines personnel and training requirements for communications systems. The Director, Navy Space Systems Division (OP-943) is responsible for program coordination and acquisition of space systems. OP-943 also assesses future SATCOM concepts, policies, and applications. This office also coordinates U.S. Navy requirements with the Chairman of the Joint Chiefs of Staff, the other Services, and DISA. This includes managing the functions of development, procurement, installation, operation, and logistical support of SATCOM systems.

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NTP 2 SECTION 2(E) f. Commandant of the Marine Corps (CMC). CMC approves and directs implementation and usage of UHF SATCOM resources assigned to the U.S. Marine Corps. Within Headquarters, U.S. Marine Corps (HQMC), the Assistant Chief of Staff, Command, Control, Communications, Computers, Intelligence, and Interoperability is tasked with the overall responsibility for management and oversight of U.S. Marine Corps SATCOM requirements. (1) The Commanding General, Marine Corps Combat Development Center (CG, MCCDC) approves and submits Fleet Marine Force requirements for FLTSATCOM support to HQMC for further processing. (2) The Commanding General, Marine Corps Systems Command, is responsible for the acquisition of U.S. Marine Corps UHF SATCOM terminals including the required logistics support. g. Unified and Specified Commanders. These warfighting commanders are assigned either geographic or functional areas of responsibility. They are responsible to the Chairman of the Joint Chiefs of Staff for the preparation of war plans which may include the use of UHF SATCOM in support of assigned missions, contingency plans, and crisis response. h. Fleet Commanders in Chief (FLTCINC's). The FLTCINC's define their requirements and submit them via the supported commander in chief (CINC) to the Chairman of the Joint Chiefs of Staff for validation. FLTCINC's manage assigned UHF assets and those allocated to other naval users in their assigned area. They exercise operational direction over assigned UHF SATCOM assets through their supporting Naval Computer and Telecommunications Area Master Station (NCTAMS) and prepare UHF SATCOM communications plans (COMMPLAN's) in support of the operations plans of unified or specified commanders. i. Commanding Generals, Fleet Marine Forces (CG's, FMF's). These commanders define their satellite requirements for naval operations and submit them via the

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NTP 2 SECTION 2(E) FLTCINC for further validation. Requests in support of U.S. Marine Corps operations are submitted to CG, MCCDC for approval and further processing by HQMC and the Joint Staff. j. Commander, Naval Space Command (COMNAVSPACECOM). This commander is the system operational manager for communications satellite systems for which the U.S. Navy is the system manager. As operational manager, COMNAVSPACECOM exercises control of assigned satellites by planning for location and relocation. COMNAVSPACECOM also determines parameters required for operation of the satellite system, such as power, bandwidth, and operating frequencies. COMNAVSPACECOM coordinates with DISA and Commander, Naval Computer and Telecommunications Command (COMNAVCOMTELCOM) concerning naval SATCOM operations and planning. COMNAVSPACECOM is also the Naval Component Commander under USCINCSPACE. k. COMNAVCOMTELCOM. This commander exercises authority over all elements of the Naval Computer and Telecommunications Command and is the communications manager for SATCOM systems and subsystems. As the communications manager, COMNAVCOMTELCOM operates the earth segment within assigned parameters in accordance with prescribed procedures, and schedules access time for authorized users of SATCOM services. NCTAMS's personnel act on behalf of the FLTCINC's to manage SATCOM assets allocated to those FLTCINC's. COMNAVCOMTELCOM retains command of all subordinate commands providing communications services to the FLTCINC's. l. Commanding Officer, NCTAMS. Under the authoritative direction and control of the respective FLTCINC, each NCTAMS will maintain for COMNAVCOMTELCOM, the operational direction and management control of those assigned assets of the NCTS.

104.

BACKGROUND

a. From the early 1900's, the U.S. Navy relied on high frequency radio as the principal transmission media for long distance communications. This situation began

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ORIGINAL

NTP 2 SECTION 2(E) to change in 1965 when the three Services initiated studies on the use of SATCOM. Lincoln Laboratory Experimental Satellite 5 (LES 5), a UHF repeater satellite was placed into high orbit on July 1, 1967. In September 1968, LES 6 was launched in further support of the tactical communications study program. An experimental tactical communications satellite (TACSAT-1) was launched in February 1969. TACSAT-1 was used by all the military services in the assessment of the tactical role of SATCOM. Three Maritime Satellite (MARISAT) system satellites developed by the Communications Satellite (COMSAT) Corporation were placed in orbit over the Atlantic (LANT), Pacific (PAC), and Indian Oceans (IO) during 1976. The U.S. Navy leased the UHF transponder of each satellite and referred to these assets as GAPFILLER. This title distinguished the U.S. Navy leased capability from the rest of MARISAT and identified their function as a gap filling measure pending the launch of FLTSAT's. The six FLTSAT's launched between 1978 and 1989 provided the initial FLTSATCOM system. In addition, four satellites were leased between 1984 and 1990 from Hughes Aircraft Company (now Hughes Communication Services, Incorporated) under the LEASAT program. b. The FLTSATCOM system has been redefined to include the FLTSAT's, LEASAT's, and GAPFILLER satellites. Three LEASAT's are now property of the Department of Defense, and the remaining LEASAT will become DOD-owned at a future date. The UFO program will provide satellites to replenish the aging FLTSATCOM system. The FLTSATCOM satellites are in four equatorial geosynchronous orbits over the LANT, continental United States, PAC, and IO areas thus providing worldwide UHF coverage. Details on the FLTSATCOM satellites are in chapter 2. c. Air Force Satellite Communications (AFSATCOM) Program. This program provides reliable, enduring, worldwide C3 to designated Single Integrated Operational Plan (SIOP)/nuclear capable forces for emergency action message (EAM) dissemination, CJCS/CINC internetting, force direction, and force reportback communications. Additionally, AFSATCOM provides support for

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ORIGINAL

NTP 2 SECTION 2(E) contingency/crisis operations, exercises, and training for a limited number of high priority non-SIOP users. The AFSATCOM space segment consists of U.S. Air Force managed transponders (offering 500-kilohertz (kHz) wideband channels and 5-kHz narrowband channels) installed on FLTSAT's and LEASAT's and a terminal segment consisting of a family of modular UHF or SHF ground and airborne terminals. The U.S. Air Force is the system manager for this system. The Satellite Data System (SDS) also provides satellite platforms for AFSATCOM transponders. The satellites of this system are in highly inclined elliptical orbits that provide coverage over the north polar regions. The AFSATCOM transponder aboard SDS consists of twelve 5-kHz narrowband channels. Control of these channels is exercised by the U.S. Air Force Primary Control Center. Additional AFSATCOM information is in chapter 2. d. UFO. The UFO satellite system is designed to provide continuous, reliable, global UHF SATCOM to mobile and shore-based users. Launching of UFO satellites is scheduled to commence in 1992 and will eventually replace the existing FLTSAT and LEASAT satellites. When launching is complete in 1996, the CJCS-approved constellation will comprise eight UFO satellites over four ocean areas and one on-orbit spare. All UFO satellites have UHF and SHF capabilities. In addition, satellites 4 and beyond will have an EHF capability. The UHF payload consists of twenty-one 5-kHz channels, seventeen 25-kHz channels, and a broadcast channel with an SHF uplink. e. North Atlantic Treaty Organization (NATO) UHF SATCOM Subsystem. The NATO UHF SATCOM subsystem consists of two UHF channels on the NATO IV SHF satellite. It provides a transmission media for connectivity between subscribers and the NATO Integrated Communications System. U.S. Navy vessels operating in NATO areas may be required to enter the NATO UHF SATCOM subsystem. Additional information regarding the NATO UHF SATCOM subsystem is discussed in chapter 2. f. International Maritime Satellite (INMARSAT). The commercial INMARSAT system can be used to provide

1-7

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NTP 2 SECTION 2(E) support to surface units at sea. The CNO has established guidance and procedures for acquiring INMARSAT equipment. See NTP 10 (NTP 4 after October 1992) and chapter 2 of this NTP for additional information regarding INMARSAT.

105.

FUTURE APPLICATIONS

a. The increasing requirement to provide nearreal-time information to afloat commanders has necessitated a reevaluation and realignment of the means available to satisfy naval circuit requirements. Future applications of UHF SATCOM are being refined to meet these requirements. b. Copernicus Architecture. The Copernicus Architecture involves a major restructuring of U.S. Navy command, control, communications, computers and intelligence (C4I) to put the warfighter at the center of the command and control universe by providing the information needed, when it is required. The Copernicus Architecture accomplishes this by collecting, correlating, and fusing data to produce and efficiently disseminate (only once) that information that is required by the battle group/battle force commander in a format that can be readily used. The four major components of Copernicus are the CINC Command Complex (CCC) ashore, the Tactical Command Centers (TCC) afloat, the Global Information Exchange Systems (GLOBIXS), and Tactical Data Information Exchange Systems (TADIXS). The U.S. Navy SATCOM architecture will support Copernicus by providing the media for data collection and for the TADIXS networks. The Communication Support System (CSS) is the major vehicle for integrating all of the U.S. Navy's SATCOM assets into Copernicus. Figure 1-2 illustrates the major components (pillars) of the Copernicus Architecture. The following paragraphs briefly describe the TADIXS and the CSS. (1) TADIXS. These systems are not the physical nets currently in use, but rather logical nets, established at the request of, and in the mix desired by, the tactical commander. This operational flexibility is at the heart of the Copernican philosophy of placing the

1-8

ORIGINAL

NTP 2 SECTION 2(E)

Figure 1-2 Pillars of the Copernicus Architecture operator at the center. Technologically, this will be accomplished by addressing data packets across the GLOBIXS, over the CCC local area network, to the CSS, onward via the TADIXS to the TCC for assimilation and further dissemination as required. (2) The CSS. CSS is a communications subarchitecture that enhances battle force communications connectivity, flexibility, and survivability through multi-media access and media sharing. The CSS permits users to share total network capacity on a priority demand basis in accordance with the tactical commander's current COMMPLAN. Automated network monitoring and management capabilities are also provided by the CSS to assist operators in the real-time allocation of communications resources according to selected criteria (e.g., suitability, antijam, priority, etc.).

106.

RELATED DOCUMENTS

1-9

ORIGINAL

NTP 2 SECTION 2(E) The following documents provide guidance or assistance in the planning and implementation of U.S. Navy UHF SATCOM systems. a. CJCS Memorandum of Policy (MOP) 37 Military Satellite Communications (MILSATCOM) Systems. This MOP is published to establish operational policy and procedures and provide guidance on MILSATCOM systems as directed by DOD Directive 5105.44. Procedural provisions of this document apply to all users of MILSATCOM systems. It concerns overall MILSATCOM policy and objectives; responsibilities of the Chairman of the Joint Chiefs of Staff, Military Departments, MILSATCOM system managers, the CINC's, the Joint Communications Satellite Center, Director, DISA; and operational policy and procedures relative to MILSATCOM systems planning and employment. b. Allied Communications Publication (ACP) 176 NATO Supplement 1 (NATO Naval and Maritime Air Communication Instructions and Organization). This publication (classified NATO CONFIDENTIAL) amplifies the basic provisions of ACP 176 by describing NATO naval and maritime communications instructions and organizations. Chapter 6 of the supplement specifically addresses satellite systems for naval and maritime use. c. Integrated SATCOM Database (ISDB). This database (formerly User Requirements Database) is administered by DISA under direction of the Chairman of the Joint Chiefs of Staff and is the single source of information concerning validated SATCOM requirements. ISDB submissions are addressed in chapter 5. d. Communications Annexes to FLTCINC Operation Orders. These documents are the FLTCINC's COMMPLAN's to support the joint and naval component commanders' requirements. The communications systems, procedures and coordinating instructions for communications operations during exercises and wartime are identified in the communications annexes. e. Fleet Telecommunications Procedures (FTP). FTP's are publications issued jointly by NCTAMS Eastern Pacific (EASTPAC) and NCTAMS Western Pacific (WESTPAC) for the PAC/IO areas and by NCTAMS LANT and NCTAMS Meditteranean (MED) for the LANT and MED areas. The FTP's promulgate standard telecommunications procedures specific to these ocean areas, and amplify information in the NTP's. Changes to the FTP may initially be promulgated by Communications Information Bulletins

1-10

ORIGINAL

NTP 2 SECTION 2(E) (CIB's). f. CIB's. CIB's are promulgated by the NCTAMS to provide accurate and readily accessible reference information on specific tactical communications subjects. CIB's provide communications personnel with current procedural information applicable to a specific communications area and normally are promulgated by message. Changes in UHF satellite operations, procedures, or channelization, for example, may initially be identified via the CIB's before incorporation into an FTP or NTP. Ships and units are required to maintain a complete and current file of CIB's.

1-11

ORIGINAL

NTP 2 SECTION 2(E) CHAPTER 2 SYSTEM DESCRIPTION 201.

GENERAL

The U.S. Navy Ultra High Frequency (UHF) Fleet Satellite Communications (FLTSATCOM) system, consisting of Fleet Satellites (FLTSAT's), Leased Satellites (LEASAT's), and portions of leased Maritime Satellites (MARISAT's), provides worldwide communication connectivity with all naval ships and submarines, certain land and air platforms, and fixed shore sites. The portion of MARISAT leased by the U.S. Navy is referred to as GAPFILLER to distinguish the special management and control functions from that of the MARISAT. The UHF Follow-on (UFO) program will provide replacement satellites for the aging FLTSAT constellation beginning late in 1992. The FLTSATCOM system comprises space, earth, and control segments. The space and earth segments consist of satellites, earth terminals, subscribers, and subsystems described in this chapter. Some satellite systems discussed in this chapter (e.g., the United Kingdom SKYNET 4 and North Atlantic Treaty Organization IV (NATO IV) satellites) are not part of FLTSATCOM but may be called upon to provide service. The control segment is described in chapter 3.

202.

SPACE SEGMENT

The space segment comprises four FLTSAT's, four LEASAT's, and two GAPFILLER satellites, positioned to provide worldwide coverage between 70o north latitude and south latitude. Table 2-1 compares key 70o characteristics of the FLTSAT, LEASAT, and UFO space segments. a. FLTSAT. FLTSAT is an element of the U.S. Navy FLTSATCOM system and is part of the worldwide Department of Defense (DOD) communication system. FLTSAT coverage areas are illustrated in figure 2-1. The satellite is comprised of two major components: a payload module and a spacecraft module with a solar array. The payload module contains the UHF and super high frequency (SHF) communications equipment (including antennas), and the telemetry, tracking, and command (TT&C) antennas. The communications equipment is mounted on the underside of panels that cover the payload section of the spacecraft. The earth sensors, attitude and velocity control, electrical power and distribution, TT&C, and reaction control equipment are part of the spacecraft module.

2-1

ORIGINAL

NTP 2 SECTION 2(E) FLTSAT's 7 and 8 also have an extremely high frequency (EHF) capability as discussed in Naval Telecommunications Procedures (NTP) 2 Section 3. (1) Satellite Characteristics. The spacecraft is a three-axis stabilized satellite. The antennas are oriented toward the center of the earth by the earth sensor subsystem and the solar array is oriented toward the sun by a clocked drive subsystem. The expected design life for the spacecraft is ten years. Figure 2-2 illustrates a deployed FLTSAT. (a) Attitude and Velocity Control. The attitude and velocity control subsystem together with the reaction control subsystem automatically maintain spacecraft stability. A low-level thrust system corrects for roll or pitch errors, detected by the earth sensor, with two sets of thrusters and a reaction wheel. Momentum of the stored reaction wheel and the angular rate of orbit provide static interaction to control yaw. When large velocity corrections are needed, the yaw attitude is controlled by the high-level reaction control thrusters. Two sets of eight thrusters provide the highlevel thrust.

2-2

ORIGINAL

NTP 2 SECTION 2(E) SATELLITE CHARACTERISTICS Effective Isotropic Radiated Power (EIRP)

UHF Earth Coverage Antenna Frequency Plans Satellite OnOrbit Weight Receive Gain-toNoise Temperature (G/T) Lifetime (expected design life)

SATELLITE FLTSAT

LEASAT

UFO

Two 25-kHz channels (FLTBCST) with EIRP of 28 dBW

Six 25-kHz channels with EIRP of 26 dBW

Eight 25-kHz channels with EIRP of 26 dBW Twelve 5-kHz channels with EIRP of 16.5 dBW

One 25-kHz channel (FLTBCST) with EIRP of 26 dBW Five 5-kHz channels with EIRP of 16.5 dBW

Seventeen 25-kHz channels EIRP: Two channels 28 dBW Fifteen channels 26 dBW One 25-kHz channel (FLTBCST) with EIRP of 28 dBW Twenty-one 5-kHz channels with (FLTBCST) EIRP of 20 dBW

One 500-kHz channel with EIRP of 27.1 dBW 19o

One 500-kHz channel with EIRP of 28 dBW 19o

19o

3 2,300 pounds

4 2,868 pounds

4 2,364 pounds

-16 dB/ok

Six 25-kHz, One 500-kHz, and Five 5-kHz channels -18 dB/ok One 25-kHz channel -20 dB/ok 10 years

≥ -16 dB/ok for 5kHz and 25-kHz channels

10 years

14 years

FLTSAT, LEASAT, and UFO Key Characteristics Table 2-1

2-3

ORIGINAL

NTP 2 SECTION 2(E) (b) Electrical Power and Distribution. The solar array provides primary electrical power. The solar array contains approximately 23,000 solar cells which are estimated to be capable of 1,435 watts after five years in use. Three nickel-cadmium (NiCd) batteries are also included in the power subsystem. Each battery is capable of delivering a constant 20 volt (V) power source. Two of the 24 sealed NiCd 24 ampere-hour cells within each battery can fail before causing a reduction in power. The power subsystem converts the unregulated direct current (dc) to regulated dc to support the design requirements of all spacecraft equipment. (c) TT&C. The TT&C subsystem provides the capability to command the satellite and transmit TT&C data over redundant control links through the Remote Tracking Stations (RTS's) operated by the Air Force Satellite Control Network (AFSCN). The TT&C is a secure (encrypted) telemetry link used primarily for command and control (C2) of communications payload operations and onorbit testing. (2) Frequency Plan. The frequency plan for FLTSAT's is listed in tables 2-2 and 2-3. Each FLTSAT has the capability to relay communications on 23 separate radio frequency (RF) channels using 3 different frequency plans containing separate uplink and downlink frequencies. Ten of the 23 channels are allocated for U.S. Navy use. Through proper frequency selection, this capability precludes interference at points in which coverage of one satellite overlaps the earth coverage of an adjacent satellite.

2-4

ORIGINAL

NTP 2 SECTION 2(E)

Figure 2-1 FLTSAT Coverage Areas

Figure 2-2 Deployed FLTSAT

2-5

ORIGINAL

NTP 2 SECTION 2(E) CHANNEL/ NOMINAL BANDWIDTH

PLAN

DOWNLINK FREQUENCY (MHz)

UPLINK FREQUENCY (MHz)

CHANNEL/ NOMINAL BANDWIDTH

PLAN

DOWNLINK FREQUENCY (MHz)

UPLINK FREQUENCY (MHz)

1 25 kHz

A B C

250.450 250.550 250.650

SHF* SHF* SHF*

13 5 kHz

A B C

243.960 244.060 244.160

317.060 317.160 317.260

2 25 kHz

A B C

251.950 252.050 252.150

292.950 293.050 293.150

14 5 kHz

A B C

243.965 244.065 244.165

317.065 317.165 317.265

3 25 kHz

A B C

253.650 253.750 253.850

294.650 294.750 294.850

15 5 kHz

A B C

243.970 244.070 244.170

317.070 317.170 317.270

4 25 kHz

A B C

255.350 255.450 255.550

296.350 296.450 296.550

16 5 kHz

A B C

243.975 244.075 244.175

317.075 317.175 317.275

5 25 kHz

A B C

256.950 257.050 257.150

297.950 298.050 298.150

17 5 kHz

A B C

243.980 244.080 244.180

317.080 317.180 317.280

6 25 kHz

A B C

258.450 258.550 258.650

299.450 299.550 299.650

18 5 kHz

A B C

243.985 244.085 244.185

317.085 317.185 317.285

7 25 kHz

A B C

265.350 265.450 265.550

306.350 306.450 306.550

19 5 kHz

A B C

243.990 244.090 244.190

317.090 317.190 317.290

8 25 kHz

A B C

266.850 266.950 267.050

307.850 307.950 308.050

20 5 kHz

A B C

243.995 244.095 244.195

317.095 317.195 317.295

9 25 kHz

A B C

268.250 268.350 268.450

309.250 309.350 309.450

21 5 kHz

A B C

244.000 244.100 244.200

317.100 317.200 317.300

10 25 kHz

A B C

269.750 269.850 269.950

310.750 310.850 310.950

22 5 kHz

A B C

244.010 244.110 244.210

317.110 317.210 317.310

11 5 kHz

A B C

243.945 244.045 244.145

317.045 317.145 317.245

23 500 kHz **

A B C

260.600 261.700 262.300

294.200 295.300 295.900

12 5 kHz

A B C

243.955 244.055 244.155

317.055 317.155 317.255

Notes: * Uplink frequency is SHF from 7.9 to 8.4 GHz on Channel 1. ** See table 2-3 for discrete frequency breakdown of channel 23.

FLTSAT Frequency Plan Table 2-2

2-6

ORIGINAL

NTP 2 SECTION 2(E) SUB CHANNEL

1

2

3

4

5

6

7

8

9

10

11

PLAN

A B C A B C A B C A B C A B C A B C A B C A B C A B C A B C A B C

DOWNLINK FREQUENCY (MHz) 260.350 261.450 262.050 260.375 261.475 262.075 260.400 261.500 262.100 260.425 261.525 262.125 260.450 261.550 262.150 260.475 261.575 262.175 260.500 261.600 262.175 260.525 261.625 262.225 260.550 261.650 262.250 260.575 261.675 262.275 260.600 261.700 262.300

UPLINK FREQUENCY (MHz) 293.950 295.050 295.650 293.975 295.075 295.675 294.000 295.100 295.700 294.025 295.125 295.725 294.050 295.150 295.750 294.075 295.175 295.775 294.100 295.200 295.775 294.125 295.225 295.825 294.150 295.225 295.850 294.175 295.275 295.875 294.200 295.300 295.900

SUB CHANNEL

12

13

14

15

16

17

18

19

20

21

PLAN

A B C A B C A B C A B C A B C A B C A B C A B C A B C A B C

DOWNLINK FREQUENCY (MHz) 260.625 261.725 262.325 260.650 261.750 262.350 260.675 261.775 262.375 260.700 261.800 262.400 260.725 261.825 262.425 260.750 261.850 262.450 260.775 261.875 262.475 260.800 261.900 262.500 260.825 261.925 262.525 266.850 261.450 262.550

Table 2-3 FLTSAT Channel 23 Wideband Frequency Plan

2-7

ORIGINAL

UPLINK FREQUENCY (MHz) 294.225 295.325 295.950 294.250 295.350 295.950 294.275 295.375 295.975 294.300 295.400 296.000 294.325 295.425 296.025 294.350 295.450 296.050 294.375 295.475 295.075 294.400 295.500 296.100 294.425 295.525 296.125 294.450 295.550 296.150

NTP 2 SECTION 2(E) (3) Satellite Configuration. Each satellite has 23 channels consisting of ten 25-kilohertz (kHz) channels; twelve 5-kHz channels; and one 500-kHz channel. Each 25-kHz UHF downlink channel has its own separate transponder. The SHF RF uplink signal is translated to a UHF downlink frequency for the fleet satellite broadcast. The FLTSAT radiated RF output power is fixed as listed in table 2-1. The 500-kHz transponder (divided into 25-kHz channels) supports multiple users and requires power balancing to avoid adjacent channel interference. The FLTSAT communications subsystem block diagram in figure 2-3 illustrates the functional relationship of the communications components.

Figure 2-3 FLTSAT Communications Subsystem Block Diagram

(4) Antenna Array. An array of antennas is mounted on the payload module as illustrated in figure 23. This array consists of: 1) a 16-foot parabolic UHF transmit antenna with a backfire, bifilar helix feed; 2) an 18-turn helical UHF receive antenna; 3) an SHF horn; and 4) a TT&C antenna. The SHF horn antenna looks

2-8

ORIGINAL

NTP 2 SECTION 2(E) through a square hole within the parabolic subreflector of the UHF transmit antenna. The hole is covered with a coarse mesh that is transparent at super high frequencies and reflective at ultra high frequencies. The TT&C antenna is the conical spiral antenna mounted on the end of the UHF transmit antenna mast. b. LEASAT. LEASAT is an element of the FLTSATCOM system and part of the worldwide DOD tactical communications system. Coverage areas are illustrated in figure 2-4. LEASAT's are used by the U.S. Navy, U.S. Marine Corps, U.S. Air Force, Department of Defense, and other government agencies. The initial service date for LEASAT was in 1984. Four satellites were leased from Hughes Communications Services, Incorporated (HCSI). The original leases covering LEASAT's-1, -2, and -3 have expired and were purchased by Department of Defense. These assets are currently managed by the U.S. Navy. The LEASAT-5 lease will expire in 1997. Figure 2-5 illustrates a deployed LEASAT.

2-9

ORIGINAL

NTP 2 SECTION 2(E)

Figure 2-4 LEASAT Coverage Areas

Figure 2-5 Deployed LEASAT

2-10

ORIGINAL

NTP 2 SECTION 2(E) (1) Satellite Characteristics. The LEASAT spacecraft has a spinning and a despun section. The spinning section contains most of the power, propulsion, attitude, and payload orientation control subsystems, and part of the TT&C subsystem. The larger despun section, the earth-oriented platform, contains the communications subsystem and the remaining part of the TT&C subsystem. Stabilization of the spacecraft attitude is accomplished through high gyroscopic stiffness developed by the spin rotor, with adjustments as needed to correct for external disturbances. Azimuth attitude control of the despun platform is provided by an active onboard control loop. (a) Attitude and Velocity Control. The attitude control functions are divided into basic categories: spin-axis attitude determination and control, stabilization, and despun platform pointing control. Three earth and four sun attitude sensors are mounted on the spinning section and provide spin-axis attitude data both during the on-orbit transfer and when on station. Only one earth sensor is required for on station operation. The use of a three-elevation orientation of the earth sensor avoids sun and moon interference and provides adequate sensor redundancy. (b) Electrical Power and Distribution. The LEASAT uses a solar array designed to supply 1,187 watts of power for at least seven years. Three batteries are installed to supply power during the annual vernal and autumnal equinoxes. This three-battery, multiplecell system provides maximum full-load support even with the failure of one battery. (2) Frequency Plan. The frequency plan for LEASAT is listed in tables 2-4 and 2-5. Each LEASAT has the capability to relay communications on 13 separate RF channels using 4 different frequency plans and separate uplink or downlink frequencies. This capability precludes interference at points in which coverage of the satellite overlaps the earth coverage of an adjacent satellite. Seven of the 13 channels are for U.S. Navy use. (3) Satellite Configuration. The satellite features 13 channels and 4 frequency plans in each channel. Channels 1 through 8 (with the exception of channel 2) are 25-kHz channels. Channel 2 is a 500-kHz channel for support of multiple uses. Channels 9 through 13 are 5-kHz channels for support of U.S. Air Force Satellite Communications (AFSATCOM) requirements. The

2-11

ORIGINAL

NTP 2 SECTION 2(E) LEASAT communications subsystem block diagram is illustrated in figure 2-6, and reflects the functional relationship of the communications subsystems. c. UFO. The UFO system is the latest in the series of UHF SATCOM systems. It will replace FLTSAT's and LEASAT's as they are phased out. The UFO constellation will consist of two satellites over each of the four earth coverage areas and one on-orbit spare. The first satellite is scheduled for initial operational capability (IOC) in early 1993. Each satellite consists of a communications payload and basic spacecraft functions needed to sustain the communications payload. UFO spacecraft four and beyond will include an EHF communications subsystem, which is addressed in NTP 2, Section 3. Figure 2-7 illustrates a deployed UFO without an EHF package, table 2-1 lists key characteristics.

2-12

ORIGINAL

NTP 2 SECTION 2(E) CHNL

PLAN

DOWNLINK FREQ (MHz)

UPLINK FREQ (MHz)

BW (kHz )

CHNL

PLA N

DOWNLINK FREQ (MHz)

UPLINK FREQ (MHz)

BW (kHz)

1

W X Y Z

250.350 250.450 250.550 250.650

SHF* SHF* SHF* SHF*

25 25 25 25

8

W X Y Z

265.250 265.350 265.450 265.550

306.25 306.35 306.45 306.55

25 25 25 25

2

W X Y Z

263.800 260.600 261.700 262.300

297.40 294.20 295.30 295.90

500 500 500 500

9

W X Y Z

243.855 243.955 244.055 244.155

316.955 317.055 317.155 317.255

5 5 5 5

3

W X Y Z

251.850 251.950 252.050 252.150

292.85 292.95 293.05 293.15

25 25 25 25

10

W X Y Z

243.860 243.960 244.060 244.160

316.960 317.060 317.160 317.260

5 5 5 5

4

W X Y Z

253.550 253.650 253.750 253.850

294.55 294.65 294.75 294.85

25 25 25 25

11

W X Y Z

243.875 243.975 244.075 244.175

316.975 317.075 317.175 317.275

5 5 5 5

5

W X Y Z

255.250 255.350 255.450 255.550

296.25 296.35 296.45 296.55

25 25 25 25

12

W X Y Z

243.900 244.000 244.100 244.200

317.000 317.100 317.200 317.300

5 5 5 5

6

W X Y Z

256.850 256.950 257.050 257.150

297.85 297.95 298.05 298.15

25 25 25 25

13

W X Y Z

243.910 244.010 244.110 244.210

317.010 317.110 317.210 317.310

5 5 5 5

7

W X Y Z

258.350 258.450 258.550 258.650

299.35 299.45 299.55 299.65

25 25 25 25

**

Notes: * Uplink frequency is SHF from 7.9 to 8.4 GHz on Channel 1. ** See table 2-5 for discrete frequency breakdown of Channel 2.

LEASAT Frequency Plan Table 2-4

2-13

ORIGINAL

NTP 2 SECTION 2(E) CHANNEL/ NOMINAL BANDWIDTH

PLAN

DOWNLINK FREQUENCY (MHz)

UPLINK FREQUENCY (MHz)

CHANNEL/ NOMINAL BANDWIDTH

PLAN

DOWNLINK FREQUENCY (MHz)

UPLINK FREQUENCY (MHz)

1 25 kHz

W X Y Z

263.55 260.35 261.45 262.05

296.90 293.95 294.80 295.65

12 25 kHz

W X Y Z

263.825 260.625 261.725 262.325

297.425 294.225 295.325 295.925

2 25 kHz

W X Y Z

263.575 260.375 261.475 262.075

296.925 293.975 294.825 295.675

13 25 kHz

W X Y Z

263.85 260.65 261.75 262.35

297.45 294.25 295.35 295.95

3 25 kHz

W X Y Z

263.60 260.40 261.50 262.10

296.95 294.00 294.85 295.70

14 25 kHz

W X Y Z

263.875 260.675 261.775 262.375

297.475 294.275 295.375 295.975

4 25 kHz

W X Y Z

263.625 260.425 261.525 262.125

296.975 294.025 294.875 295.725

15 25 kHz

W X Y Z

263.90 260.70 261.80 262.40

297.50 294.30 295.40 296.00

5 25 kHz

W X Y Z

263.65 260.45 261.55 262.15

297.00 294.05 294.90 295.75

16 25 kHz

W X Y Z

263.925 260.725 261.825 262.425

297.525 294.325 295.425 296.025

6 25 kHz

W X Y Z

263.675 260.475 261.575 262.175

297.025 294.075 294.925 295.775

17 25 kHz

W X Y Z

263.95 260.75 261.85 262.45

297.55 294.35 295.45 296.05

7 25 kHz

W X Y Z

263.70 260.50 261.60 262.20

297.05 294.10 294.95 295.80

18 5 kHz

W X Y Z

263.975 260.775 261.875 262.475

297.575 294.375 295.475 296.075

8 25 kHz

W X Y Z

263.725 260.525 261.625 262.225

297.075 294.125 294.975 295.825

19 5 kHz

W X Y Z

264.00 260.80 261.90 262.50

297.60 294.40 295.50 296.10

9 25 kHz

W X Y Z

263.75 260.55 261.65 262.25

297.10 294.15 295.00 295.85

20 5 kHz

W X Y Z

264.025 260.825 261.925 262.525

297.625 294.425 295.525 296.125

10 25 kHz

W X Y Z

263.775 260.575 261.675 262.275

297.125 294.175 295.025 295.875

21 5 kHz

W X Y Z

264.05 260.85 261.95 262.55

297.65 294.45 295.55 296.15

11 25 kHz

W X Y Z

263.80 260.60 261.70 262.30

297.40 294.20 295.30 295.90

LEASAT Channel 2 Wideband Frequency Plan Table 2-5

2-14

ORIGINAL

NTP 2 SECTION 2(E)

Figure 2-6 LEASAT Communications Subsystem Block Diagram

Figure 2-7 UFO Deployed Satellite

2-15

ORIGINAL

NTP 2 SECTION 2(E) (1) The communications subsystem payload includes receive and transmit antennas, a low noise amplifier, 5-kHz and 25-kHz transmit and receive channels, and an output multiplexer. The receive antenna is a planar, four-element patch array. The nadir transmit antenna is a four-element, short backfire array composed of a reflective cup, reflecting disks, and four crossed dipole elements. The SHF subsystem provides the required SHF antijam (AJ) uplink capability for the fleet satellite broadcast. In the multiplexed AJ broadcast (MAJB) mode on the UFO, two baseband digital data signals and the composite fleet broadcast signal are differentially encoded, multiplexed, and transmitted to the UFO satellite. The uplink transmission is in the SHF range. The received signal is then demultiplexed by the satellite into its three component data signals and retransmitted via separately dedicated UHF channels, to the subscribers. The fleet broadcast SHF uplink and UHF downlink both use horn antennas. (2) Satellite Characteristics. The UFO is a three-axis stabilized satellite weighing approximately 2,364 pounds. The satellites will be located in geosynchronous orbits, and will provide earth coverage The TT&C between 70o north and 70o south latitudes. subsystem provides the ground interface and data processing for satellite TT&C services and has three equipment sections: redundant Space-Ground-Link System (SGLS); SHF RF interface; and the digital equipment section. The SGLS transponders and associated equipment provide RF interfaces to support TT&C operations with RTS's within the AFSCN. The SHF RF interface equipment and the MD-942 processor provide the interface with the Navy Satellite Control Stations (NSCS) for secure, AJ satellite command and ranging. The digital equipment section interfaces with all UFO satellite subsystems and performs telemetry data exchange. Satellites four and beyond will have EHF telemetry and command data transmit and receive capability. The electrical power and distribution system consists of two solar array wings, power distribution hardware, batteries, and battery control hardware. A nickel-hydrogen (NiH2) battery provides power during on-orbit eclipse operations. (3) Frequency Plan. Table 2-6 provides a channel 1 frequency plan for UFO satellites. There are four separate frequency plans for UFO satellites as listed in table 2-7. Each UFO satellite is capable of

2-16

ORIGINAL

NTP 2 SECTION 2(E) operating 39 RF channels on any one of the assigned frequency plans. One frequency plan will be assigned to each satellite to minimize frequency conflicts, interference, and to maximize overall communications services. CHANNEL/ NOMINAL BANDWIDTH 1 25 kHz

PLAN

UPLINK

DOWNLINK (PRIMARY)

DOWNLINK (ALTERNATE)

N O P Q

SHF SHF SHF SHF

A250.350 B250.450 C250.550 D250.650

A250.400 B250.500 C250.600 D270.700

Channel 1 Frequency Plan Table 2-6

CHANNEL/ NOMINAL BANDWIDTH

PLAN

DOWNLINK FREQUENCY (MHz)

UPLINK FREQUENCY (MHz)

CHANNEL/ NOMINAL BANDWIDTH

PLAN

DOWNLINK FREQUENCY (MHz)

UPLINK FREQUENCY (MHz)

2 25 kHz

N O P Q

251.850 251.950 252.050 252.150

292.850 292.950 293.050 293.150

13 25 kHz

N O P Q

261.575 262.075 261.625 262.125

295.175 295.675 295.225 295.725

3 25 kHz

N O P Q

253.550 253.650 253.750 253.850

294.550 294.650 294.750 294.850

14 25 kHz

N O P Q

261.675 262.175 261.725 262.225

295.275 295.775 295.325 295.825

4 25 kHz

N O P Q

255.250 255.350 255.450 255.550

296.250 296.350 296.450 296.550

15 25 kHz

N O P Q

261.775 262.275 261.825 262.325

295.375 295.875 295.425 295.925

5 25 kHz

N O P Q

256.850 256.950 257.050 257.150

297.850 297.950 298.050 298.150

16 25 kHz

N O P Q

261.875 262.375 261.925 262.425

295.475 295.975 295.525 296.025

6 25 kHz

N O P Q

258.350 258.450 258.550 258.650

299.350 299.450 299.550 299.650

17 25 kHz

N O P Q

263.575 263.775 263.625 263.825

297.175 297.375 297.225 297.425

7 25 kHz

N O P Q

265.250 265.350 265.450 265.550

306.250 306.350 306.450 306.550

18 25 kHz

N O P Q

263.675 263.875 263.725 263.925

297.275 297.475 297.325 297.525

8 25 kHz

N O P Q

266.750 266.850 266.950 267.050

307.750 307.850 307.950 308.050

19 5 kHz

N O P Q

243.915 243.995 244.075 244.155

317.015 317.095 317.175 317.255

2-17

ORIGINAL

NTP 2 SECTION 2(E) CHANNEL/ NOMINAL BANDWIDTH

PLAN

DOWNLINK FREQUENCY (MHz)

UPLINK FREQUENCY (MHz)

CHANNEL/ NOMINAL BANDWIDTH

PLAN

DOWNLINK FREQUENCY (MHz)

UPLINK FREQUENCY (MHz)

9 25 kHz

N O P Q

268.150 268.250 268.350 268.450

309.150 309.250 309.350 309.450

20 5 kHz

N O P Q

243.925 244.005 244.085 244.165

317.025 317.105 317.185 317.265

10 25 kHz

N O P Q

269.650 269.750 269.850 269.950

310.650 310.750 310.850 310.950

21 5 kHz

N O P Q

243.935 244.015 244.095 244.175

317.035 317.115 317.195 317.275

11 25 kHz

N O P Q

260.375 260.575 260.425 260.625

293.975 294.175 294.025 294.225

22 5 kHz

N O P Q

243.945 244.025 244.105 244.185

317.045 317.125 317.205 317.285

12 25 kHz

N O P Q

260.475 260.675 260.525 260.725

294.075 294.275 294.125 294.325

23 5 kHz

N O P Q

243.955 244.035 244.115 244.195

317.055 317.135 317.215 317.295

24 5 kHz

N O P Q

243.965 244.045 244.125 244.205

317.065 317.145 317.225 317.305

32 5 kHz

N O P Q

248.895 249.025 249.155 249.285

302.495 302.625 302.755 302.885

25 5 kHz

N O P Q

243.975 244.055 244.135 244.215

317.075 317.155 317.235 317.315

33 5 kHz

N O P Q

248.905 249.035 249.165 249.295

302.505 302.635 302.765 302.895

26 5 kHz

N O P Q

243.985 244.065 244.145 244.225

317.085 317.165 317.245 317.325

34 5 kHz

N O P Q

248.915 249.045 249.175 249.305

302.515 302.645 302.775 302.905

27 5 kHz

N O P Q

248.845 248.975 249.105 249.235

302.445 302.575 302.705 302.835

35 5 kHz

N O P Q

248.925 249.055 249.185 249.315

302.525 302.655 302.785 302.915

28 5 kHz

N O P Q

248.855 248.985 249.115 249.245

302.455 302.585 302.715 302.845

36 5 kHz

N O P Q

248.935 249.065 249.195 249.325

302.535 302.665 302.795 302.925

29 5 kHz

N O P Q

248.865 248.995 249.125 249.255

302.465 302.595 302.725 302.855

37 5 kHz

N O P Q

248.945 249.075 249.205 249.335

302.545 302.675 302.805 302.935

30 5 kHz

N O P Q

248.875 249.005 249.135 249.265

302.475 302.605 302.735 302.865

38 5 kHz

N O P Q

248.955 249.085 249.215 249.345

302.555 302.685 302.815 302.945

31 5 kHz

N O P Q

248.885 249.015 249.145 249.275

302.485 302.615 302.745 302.875

39 5 kHz

N O P Q

248.965 249.095 249.225 249.355

302.565 302.695 302.825 302.955

2-18

ORIGINAL

NTP 2 SECTION 2(E) UFO Frequency Plan (Continued) Table 2-7 d. GAPFILLER. The GAPFILLER capability (as illustrated in figure 2-8) currently resides on two MARISAT satellites leased from Communications Satellite (COMSAT) Corporation. The satellite payload consists of independent, fully redundant repeaters. The UHF repeater used for U.S. Navy communications is a solid-state assembly consisting of a receiver, channel power amplifier, and a multiplexer. The antenna system consists of a three-element, polarized, bifilar helical array. The TT&C functions are controlled by COMSAT General, the satellite operations arm of COMSAT. GAPFILLER satellites were designed with a life expectancy of 10 years. Figure 2-9 illustrates a deployed GAPFILLER satellite in geostationary orbit.

2-19

ORIGINAL

NTP 2 SECTION 2(E)

Figure 2-8 GAPFILLER Coverage Areas

Figure 2-9 Deployed GAPFILLER

2-20

ORIGINAL

NTP 2 SECTION 2(E) (1) Satellite Characteristics. GAPFILLER is spin-stabilized at 100 revolutions per minute, with the antenna array despun and earth oriented. The satellite weighs approximately 1,445 pounds. The U.S. Navy leases one 500-kHz bandwidth transponder per satellite. The 500-kHz bandwidth is subdivided into 21 channels by the use of a frequency division multiple access (FDMA) technique. These channels vary in transmission rates between 75 and 2400 bits per second (bps). The FDMA technique requires balancing of the transmitter power so that each user can eliminate adjacent channel interference. (2) The electrical power subsystem provides power for all spacecraft subsystems from launch through lifespan of the satellite. Primary power is supplied by a cylindrical solar cell array and two 28-cell sealed NiCd batteries. (3) Frequency Plan. The GAPFILLER 500-kHz transponder frequency plan is listed in table 2-8. WIDEBAND CHANNEL

DOWNLINK FREQUENCY (MHz)

UPLINK FREQUENCY (MHz)

WIDEBAND CHANNEL

DOWNLINK FREQUENCY (MHz)

UPLINK FREQUENCY (MHz)

1

248.850

302.450

12

249.125

302.725

2

248.875

302.475

13

249.150

302.750

3

248.900

302.500

14

249.175

302.775

4

248.925

302.525

15

249.200

302.800

5

248.950

302.550

16

249.225

302.825

6

248.975

302.575

17

249.250

302.850

7

249.000

302.600

18

249.275

302.875

8

249.025

302.625

19

249.300

302.900

9

249.050

302.650

20

249.325

302.925

10

249.075

302.675

21

249.350

302.950

11

249.100

302.700

GAPFILLER 500-kHz Bandwidth Frequencies Table 2-8

2-21

ORIGINAL

NTP 2 SECTION 2(E) e. AFSATCOM Subsystem. The AFSATCOM subsystem is a UHF system used to disseminate emergency action messages (EAM's) and Single Integrated Operational Plan (SIOP) communications from worldwide command post ground stations and aircraft. The AFSATCOM space segment consists of U.S. Air Force managed transponders of varying capability and capacity carried aboard FLTSAT, LEASAT, Satellite Data System, Defense Satellite Communications System III (DSCS III), Lincoln Experimental Satellites (LES 8 and 9), and other satellites. The transponder receives C2 communications from ground terminals and airborne command posts on SHF or UHF channels. The AFSATCOM subsystem provides reliable and enduring AJ communications worldwide during crisis and contingencies. The AFSATCOM UHF package on FLTSAT consists of twelve 5-kHz channels on each satellite plus the 500-kHz transponder on three of the four spacecraft. LEASAT provides AFSATCOM with five 5kHz channels and portions of the 500-kHz channel. DSCS III provides a single channel transponder restricted to EAM transmissions. Detailed information and instructions on AFSATCOM operations have been provided to AFSATCOM users by the U.S. Air Force. f. International Maritime Satellite (INMARSAT) Communications System. Although the INMARSAT system falls outside of the U.S. Navy portion of the UHF spectrum, it is discussed here for completeness. The INMARSAT Communications System is a multi-country controlled SATCOM network that links an INMARSAT terminal into existing national or international telephone networks. Two U.S. earth stations operated by COMSAT General are located in Santa Paula, CA and Southbury, CT respectively. INMARSAT service is available to U.S. Navy commands with an authorized installed INMARSAT terminal. (1) U.S. Navy ships equipped with INMARSAT terminals are authorized to establish direct communications with shore commands or other INMARSAT equipped ships (USN/USNS) via INMARSAT earth stations operated by COMSAT General. In these instances, interface via Naval Computer and Telecommunications Command facilities is not required. Use of National Security Agency-approved crypto systems is mandatory. (2) The INMARSAT space segment consists of the satellite and support facilities operated by COMSAT Corporation. There are currently four operational regions, each with its own operational and backup satellite. The satellites are placed in geostationary orbit 22,188 miles above the earth to provide worldwide

2-22

ORIGINAL

NTP 2 SECTION 2(E) coverage between 76o north and 76o illustrates a deployed INMARSAT.

south.

Figure 2-10

(3) Frequency Plan. Ship Earth Stations (SES's) transmit and receive signals to and from the satellite using L-band frequencies. Coast Earth Stations (CES's) and Network Control Stations (NCS's) transmit and receive signals to and from the satellite using Cband frequencies. Table 2-9 lists the operational frequencies for the INMARSAT network. SES is always tuned to the Common Signaling Channel to listen for assignments. When not engaged in passing traffic, SES is in an idle state.

2-23

ORIGINAL

NTP 2 SECTION 2(E)

Figure 2-10 Deployed INMARSAT

OPERATION

FREQUENCY MHz

SES Transmit SES Receive CES and NCS Transmit CES and NCS Receive

1631.5 1530.0 6425.0 3600.0

-

1638.01 1537.5 6443.0 3623.0

FREQUENCY BAND L-Band L-Band C-Band C-Band

INMARSAT Frequency Plan Table 2-9 (4) Additional INMARSAT characteristics and operating procedures may be found in the current NTP 10 (INMARSAT data is being moved to NTP 4 in the next update scheduled for release in late 1992). g. NATO IV. The NATO IV communications satellite system launched in 1991, is operated by NATO. The NATO IV satellite is three-axis stabilized and weighs approximately 1,452 pounds. The satellite consists of a payload section and platform bus section that services the payload. Two solar array panels supply 1,200 watts of power for the subsystems. Baffles control the temperature of the NiCd batteries which supply power during periods of solar eclipse. The attitude and orbit

2-24

ORIGINAL

NTP 2 SECTION 2(E) control subsystems use sun sensor and infrared earth sensors to maintain orbit position. The TT&C is monitored and controlled by the TT&C ground station at Oakhanger, United Kingdom. Design life is seven years. (1) The NATO IV satellite communications in the SHF and UHF bands. transponder provides four channels, and transponder provides two channels. The characteristics are listed in table 2-10. TRANSPONDER

SHF

FREQUENCY BAND

CHANNEL

7.25 - 8.4 GHz

provides The SHF the UHF NATO IV

ANTENNA

EIRP

1 2 3 4

Earth Coverage Narrow Beam Wide Beam Spot Beam

31 34 35 39

Uplink: 250 - 260 MHz

1

Earth Coverage

26 dBW

25 kHz

Downlink: 305 - 315 MHz

2

26 dBW

25 kHz

UHF

dBW dBW dBW dBW

BANDWIDT H 135 MHz 85 MHz 60 MHz 60 MHz

Earth Coverage

NATO IV Characteristics Table 2-10 (2) The NATO satellite system consists of the 24 active satellite ground terminals (SGT's), two control centers, and the NATO school segment. Table 2-11 lists the NATO SGT's. F1

Kester, Belgium

F13

Izmir, Turkey

F2

Euskirchen, Germany

F14

Verona, Italy

F3

Northwest, Virginia

F15

Keflavik, Iceland

F4

Oakhanger, United Kingdom

F16

Bjerkvik, Norway

F5

Eggemoen, Norway

F17

Balado Bridge, United Kingdom

F6

Ankara, Turkey

F18

Folly Lake, Canada

F7

Civitavecchia, Italy

F19

Gibraltar, United Kingdom

F8

Carp, Canada

F20

Landau, Germany

F9

Schoonhoven, Netherlands

F21

Catania, Italy

2-25

ORIGINAL

NTP 2 SECTION 2(E) F10

Lundebakke, Denmark

F22

Greenland, Denmark

F11

Atalanti, Greece

F25

T1 (Transportable)

F12

Lisbon, Portugal

F29

Saxa Vord, United Kingdom

NATO Terminals Table 2-11 h. SKYNET 4. SKYNET 4 is the latest in a series of United Kingdom military communication satellites. The SKYNET 4 system consists of the satellites and various fixed and transportable ground stations on land and sea. Each satellite is three-axis stabilized in geosynchronous orbit, weighs approximately 1,452 pounds, and consists of a payload and platform section. The solar array panels supply 1,200 watts of electrical power at a regulated 42 V dc required for the subsystems. Two NiCd batteries, 14 cells each, supply power during periods of eclipse. Sun sensors and infrared earth sensors are used for attitude and orbit control. The TT&C is monitored and controlled from the main control center at the Royal U.S. Air Force Station, Oakhanger, United Kingdom. The antenna array contains a variety of UHF and SHF antennas required for different coverage patterns and communications systems. Characteristics of the SKYNET 4 satellite payload are listed in table 2-12.

TRANSPONDER

SHF

FREQUENCY BAND

CHANNEL

7.25 - 8.4 GHz

ANTENNA

EIRP

1 2 3 4

Earth Coverage Narrow Beam Wide Beam Spot Beam

31 34 35 39

Uplink: 305 - 315 MHz

1

Earth Coverage

26 dBW

25 kHz

Downlink: 250 - 260 MHz

2

26 dBW

25 kHz

UHF

dBW dBW dBW dBW

BANDWIDT H

Earth Coverage

SKYNET 4 Payload Characteristics Table 2-12

2-26

ORIGINAL

135 85 60 60

MHz MHz MHz MHz

NTP 2 SECTION 2(E) 203. EARTH SEGMENT The earth segment of UHF SATCOM consists of the UHF radio terminals (shore, ship-board, airborne, research, development, test and evaluation, and training) developed under the FLTSATCOM program and a small number of terminals that were developed during the Tactical Satellite Communications program. The earth segment includes the earth terminals located at Naval Computer and Telecommunications Area Master Stations (NCTAMS's) Atlantic (LANT), Mediterranean (MED), Western Pacific (WESTPAC), and Eastern Pacific (EASTPAC); Naval Communications Stations (NAVCOMMSTA's); and Naval Computer and Telecommunications Stations (NAVCOMTELSTA's). The earth segment also includes the transmitters, receivers, baseband equipment, and subsystems which are discussed in the remainder of this chapter.

204. RF TERMINALS a. AN/FSC-79. The AN/FSC-79 is an SHF SATCOM transmitter designed to support the fleet satellite broadcast uplink. The downlink for the fleet broadcast is UHF. Figure 2-11 illustrates the AN/FSC-79 antenna. The terminal operates on a single channel, tunable in 1kHz increments over a transmitting frequency range of 7.9 to 8.4 GHz, at a maximum output of 8,000 watts. The AN/FSC-79 can simultaneously transmit a spread spectrum carrier and receive a satellite beacon tracking signal. In the primary operating mode, the time division multiplex (TDM) broadcast is converted by the OM-51A/FR modem to a spread spectrum signal for transmission on the AN/FSC-79. For most components, redundancy is built into the AN/FSC-79 to ensure a high level of availability. AN/FSC-79 terminals are installed at all NCTAMS and NAVCOMMSTA Stockton, CA.

2-27

ORIGINAL

NTP 2 SECTION 2(E)

Figure 2-11 AN/FSC-79 Antenna

b. AN/WSC-5(V) Transceiver Terminal. The AN/WSC5(V) transceiver provides an eight circuit full-duplex data operation or six full-duplex and two half-duplex, 100-watt channels. Figure 2-12 illustrates the AN/WSC5(V) communications subsystem block diagram. Two channels may be used in the frequency modulation (FM) mode. It transmits in the frequency band between 292.2 to 311.6 Megahertz (MHz) and receives between 240.5 to 270.2 MHz. The AN/WSC-5(V) is also capable of interfacing with the UHF Demand Assigned Multiple Access (DAMA) equipment. The antenna and transceiver provide each channel a nominal EIRP of 27 dBW. Three types of modulation schemes are used with the transceiver: FM for voice; FM for tone group; and differentially encoded phase shift keying (DPSK), using the OM-43A/USC modem for

2-28

ORIGINAL

NTP 2 SECTION 2(E) the fleet broadcast. The transmitted FM voice signal is pre-emphasized to improve the signal-to-noise ratio (SNR) and the received FM voice signal is de-emphasized to compensate for the applied pre-emphasis.

Figure 2-12 AN/WSC-5(V) Communications Subsystem Block Diagram (1) The transceiver has a 70-MHz interface for connection to either the OM-43A/USC modem or the TD-1271B/U multiplexer used in the DAMA subsystem. Teletype operation with the AN/WSC-5(V) is remotely controlled by the C-11330/WSC-5(V). (2) An eight-channel AN/WSC-5(V) transceiver capability requires three electrical equipment racks and a control equipment rack. Each NCTAMS (LANT, MED, WESTPAC, and EASTPAC) has two AN/WSC-5(V) transceivers (16-channel capability). NAVCOMMSTA Stockton, CA has an AN/WSC-5(V) with eight-channel capability supporting EASTPAC and two three-channel AN/WSC-5(V)'s supporting the continental United States.

2-29

ORIGINAL

NTP 2 SECTION 2(E) c. AN/WSC-3(V) Transceiver. The AN/WSC-3(V) is the U.S. Navy's standard UHF satellite terminal and line of sight (LOS) transceiver. Figure 2-13 illustrates AN/WSC-3(V) Communications Subsystem Block Diagram. The AN/WSC-3(V) has several variations as listed in table 2-13, to meet the particular requirements of submarines, surface ships, and landing forces. Several variants of the AN/WSC-3(V) have been modified for use with the DAMA subsystem. The AN/WSC-3(V) can be installed in surface platforms, submarines, aircraft, and transportable shelters, and is used by many NATO and allied countries.

Figure 2-13 AN/WSC-3(V) Communications Subsystem Block Diagram

2-30

ORIGINAL

NTP 2 SECTION 2(E)

AN/WSC-3 Variations Table 2-13

(1) The AN/WSC-3(V) is designed for singlechannel, half-duplex operations in the 225-400 MHz military UHF band, tunable in 5-kHz (on certain variants) or 25-kHz increments, with 20 preset channels. It can be operated in either the satellite or LOS mode and can be controlled locally or remotely. An internal receiver frequency offset switch allows the operator to select the required 41-MHz offset receive frequency for FLTSAT and LEASAT operations or the 53.6-MHz offset receive

2-31

ORIGINAL

NTP 2 SECTION 2(E) frequency for GAPFILLER operations.

(2) The transmitter output is 30 watts in amplitude modulation (AM); and 100 watts in FM, PSK, differential phase shift keying (DPSK), or frequency shift keying (FSK) modes. The AN/WSC-3(V) internal modem provides modulation and detection of digital signals at data rates of 75 bps (FSK); and 75, 300, 1200, 2400, 4800, or 9600 bps (PSK/DPSK). d. Transportable Equipment. UHF SATCOM extends the mobile forces range of ter-restrial communications with improved reliability, speed, and reduced deployment setup time for theater, corps, amphibious task force, and tactical air elements. It supports the need to exchange information during training and actual conflicts. The mobile terminals currently being used by naval forces operate within the UHF frequency band of 225 to 400 MHz. The type of modulation employed by these terminals is either AM, FM, FSK, PSK or DPSK. The power output ranges from 10 to 100 watts and the data rate ranges from 75 to 2400 bps. (1) AN/TSC-96(V). The AN/TSC-96(V) SATCOM Central provides terminal and transmission equipment in two shelters: the OZ-46/TSC-96(V) Radio Set Group in a S250 shelter which is 2,000 pounds and 281 cubic feet (7'L x 6.5'W x 6'H) and the OL-188(V)/TSC-96(V) Data Processing Group in a S-280 shelter which is 7,000 pounds and 654 cubic feet (12.3'L x 7.3'W x 7'H). Both of these shelters are capable of being transported by cargo truck, helicopter, and aircraft; however, they are not able to operate during transit. The OZ-46/TSC-96(V) is the Landing Force Transmit and Receive Subsystem terminal of the FLTSATCOM system. It consists of three AN/WSC-3(V) transceivers, one AN/SSR-1 receiver, an antenna system, line interface units, and ancillary equipment. The OZ-46/TSC-96(V) radio group can be remotely operated up to 250 feet from the OL-188(V)/TSC-96(V) processing group by interconnect cable. The OL-188(V)/TSC-96(V) contains the voice, data, teletype, and communications security (COMSEC) equipment. The AN/TSC-96(V) is capable of terminating the 1200 bps fleet broadcast channels and the 2400 bps Secure Voice (SECVOX) Subsystem. The AN/TSC96(V) also has the capability to function as a Common User Digital Information Exchange Subsystem (CUDIXS) subscriber. The CV-3333/U Audio Digital Converter and

2-32

ORIGINAL

NTP 2 SECTION 2(E) encryption device can be remotely operated up to 500 feet from the OL-188(V)/TSC-96(V) using an external power source. Power outputs are 100 watts for FM (FSK/PSK) transmission or 30 watts for AM transmission. The AN/TSC-96(V) requires a line voltage of 208 V alternating current (ac), 60 Hz, 3 phase; or 115 V ac, 60 Hz, 1 phase. The AN/TSC-96(V) normally deploys with organic tactical mobile electric power generators for field operations. The AN/TSC-96(V) is intended to be used by the U.S. Marine Air Ground Task Force Headquarters (MAGTF HQ) element. Table 2-14 lists the equipment for the AN/TSC-96(V) terminal. (2) AN/VSC-7. The AN/VSC-7 vehicular satellite terminal is a narrowband, single-channel radio, consisting of the AN/PSC-3 transceiver, a vehicular installation kit, and ancillary equipment. The AN/VSC-7 equipment can be operated from a vehicular power source. This UHF SATCOM transceiver is used on tactical vehicles as a NCS in the execution of ground force tactical missions. (3) AN/URC-100 and AN/URC-101 UHF/Very High Frequency (VHF) Transceiver. The AN/URC-100 and AN/URC101 transceivers are multi-purpose radios with 8,360 channels available in the UHF and VHF bands of 225 to 400 MHz and 115 to 150 MHz. The transceivers are designed for manpack, aircraft, shipboard and vehicle use. The transceivers are fully synthesized radios and tune across the total frequency range in increments of 25 kHz. (a) As a manpack tactical transceiver, the equipment is designated the AN/URC-100, while as a SATCOM tactical transceiver, the equipment is known as the AN/URC-101. Both sets have evolved from the PT-25A portable emergency transceiver. (b) Both transceivers are contained in identical weather resistant manpack-type cases. A remote control head provides for power on/off, volume and squelch controls, as well as preset frequency selection. Features of the control unit include an electronic frequency display that indicates the frequency in use, and the ability to load eight preset frequencies into an electronic memory. There is also a scan mode in which the unit automatically scans three operator-preset channels.

2-33

ORIGINAL

NTP 2 SECTION 2(E) ITEM

ITEM NOMENCLATURE

QUANTITY

Shelter (OL-188(V))

S-280

1

Shelter (OZ-46)

S-250

1

Processor

AN/UYK-20(V)

1

Demultiplexer

TD-1063A/SSR-1

1

Combiner/Demodulator

MD-960/SSR-1

1

Amplifier/Converter

AM-6534/AAE-1

1

Distributor-Transmitter Teletypewriter

TT-603/UG

1

Teletypewriter

AN/UGC-77

2

Switchboard, Receiver Transfer

SB-3195(U)

1

Panel, Patch Communications

SB-3145/UG

1

Teleprinter

TT-624(V)/UG

2

Reperforating Teletypewriter

TT-605/UG

1

Control-Indicator

C-9351/WSC-3

4

Control-Indicator

C-9899/WSC-3

3

Recorder-Reproducer (magnetic tape cartridge)

AN/USH-26(V)

1

Recorder-Reproducer (perforated tape)

RD-397(V)/U

1

Interconnecting Group

ON-143(V)4/USQ

2

Antenna

AS-2815/SSR-1

1

Audio Digital Converter/Encryption Device

CV-3333/U

1

AN/TSC-96(V) Terminal Equipment Table 2-14

2-34

ORIGINAL

NTP 2 SECTION 2(E) (c) All AN/URC transportable radios, with the exception of the AN/URC-110, have been declared obsolete (ASDC3I letter of 25 June 1989) and will soon disappear from the fleet. (4) AN/URC-110 Transceiver. The AN/URC-110 transceiver is a data transceiver with 5-kHz channel spacing. It operates in the VHF range of 115 to 150 MHz and in the UHF range of 225 to 400 MHz. This manpack transceiver was designed with a low noise synthesizer to permit operation with tactical modems such as the Motorola PM-15A. (a) The 5-kHz channel spacing provides the transceiver with 35,000 UHF and 6,800 VHF channels. The unit can transmit data and has LOS and SATCOM capabilities. The modular construction enables the user to configure the unit to support a variety of mission needs. (b) Like the AN/URC-101, this transceiver is fully synthesized, has 20 watts of power for SATCOM operation and can function as a repeater and frequency translator for users requiring extended range communications. (5) AN/PSC-3 Manpack. This satellite terminal is a tactical UHF-FM radio which permits two-way communications in satellite and LOS modes. It is capable of FM voice and 300-2400 bps data communications in halfduplex synchronous and burst data communications using the AFSATCOM I transponder on the FLTSAT. The AN/PSC-3 operates in the 225 to 399.995 MHz frequency range, features FM and PSK modulation, with 5-kHz channels in the satellite mode and 25-kHz channels in the LOS mode. Power outputs are 35 watts in the satellite mode with a terminal EIRP of 21.4 dBW using an ancillary antenna or 2 watts for LOS mode. The AN/PSC-3 uses a self-contained battery powerpack and weighs approximately 30 pounds with the battery powerpack. The AN/PSC-3 is intended to allow communications between the landing force commander's remote mobile tactical units and selected aircraft. (6) LST-5B/C. The LST-5B and LST-5C lightweight (less than 20 pounds) UHF SATCOM terminals

2-34

ORIGINAL

NTP 2 SECTION 2(E) are used for LOS and SATCOM on 5-kHz or 25-kHz bandwidth channels, tunable in 5-kHz increments. They are used for manpack, vehicular, or fixed station applications. The radio sets operate in the 225 to 400 MHz frequency range and are suitable for voice or data communications at data rates of 1200 or 2400 bps. These sets are also capable of operating in wideband modes in AM or FM voice and cipher text. e. AN/SSR-1 and AN/SSR-1A Receivers. The AN/SSR1 and AN/SSR-1A Satellite Signal Receiving sets provide U.S. Navy surface ships with the capability of receiving the UHF Fleet Satellite Broadcast. The satellite receiver accepts RF signals between 249 and 259 MHz, with a modulation bandwidth of 25 kHz. The signal may be either FM or PSK and the receiver set has a manual switch for selecting the applicable demodulation mode. The TD-1063/SSR-1 receiver is capable of driving high-level teletypewriters and the TD-1063A/SSR-1A is capable of driving both high- and low-level teletypewriters. The system components include up to four AS-2815/SSR-1 antennas and their respective AM-6534/SSR-1 amplifierconverters, an MD-900/SSR-1 combiner-demodulator, and a TD-1063/SSR-1 or TD-1063A/SSR-1A demultiplexer. The AS2815/SSR-1 receiver set antennas may be replaced by a modified OE-82C/WSC-1(V) at times when additional antenna gain is required. (1) The four topside AS-2815/SSR-1 antenna locations provide overlapping 360o receive capability. The designed operating range of the antennas is 240 to 259 MHz. The antenna polarization is right-hand circular with a hemispherical pattern. Each antenna receives RF input which is processed by its associated amplifierconverter. The amplifier-converter improves the RF signal received at the antenna by amplifying it to a usable level and converting the signal to an intermediate frequency (IF) for relay to the combiner-demodulator. The receiver set combines each antenna signal to obtain the best signal. When multiple antennas receive the RF input, the receive technique results in an improved SNR. (2) The combiner-demodulator demodulates the IF signal from the amplifier-converter. In FM operation, it supplies a 300 to 3400 Hz audio signal to the audio patch panel, where it is then directed to the AN/UCC-1 Telegraph Terminal. In PSK operation, it supplies a 1200 bps data stream to the demultiplexer. The 1200 bps data

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NTP 2 SECTION 2(E) stream accepted by the demultiplexer is output as 15 slots of data at 75 bps. The demultiplexer operates in the PSK mode only. After decryption, the demultiplexer output is patched to teletypewriters or processors (Naval Modular Automated Communications System (NAVMACS) or Tactical Intelligence Subsystem (TACINTEL)), as appropriate.

205.

PRIMARY UHF ANTENNA SUBSYSTEMS

a. Antenna Groups OE-82B/WSC-1(V) and OE-82C/WSC1(V). These devices were designed for shipboard installations and interface with the AN/WSC-3(V) transceivers. Figures 2-14 and 2-15 illustrate an OE82B/WSC-1(V) antenna and OE-82C/WSC-1(V) antenna, respectively. Each configuration consists of an antenna, band pass amplifier-filter, switching unit, and antenna control. One or two antennas may be installed providing a view of the satellite at all times. The antenna rotates through 360o of azimuth and elevations from near horizontal to approximately 20o beyond zenith (elevation The antenna is capable of angles from +2o to +110o). automatically tracking in azimuth and requires manual elevation adjustments. The frequency range is between 248 and 272 MHz for receive and 292 and 312 MHz for transmit. The OE-82C/WSC-1(V) antenna is polarized right-hand circular for transmit and receive. The antenna can be used in conjunction with the AS-2815/SSR-1 receiving antennas and the AN/SSR-1 satellite receiving set. The OE-82B/WSC-1(V) and OE-82C/WSC-1(V) antennas provide a nominal gain of 12 dB for transmit and 11 dB for receive.

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NTP 2 SECTION 2(E)

Figure 2-14 OE-82B/WSC-1(V) Antenna Group

b. Shore Station Antenna AN/WSC-5(V). The antenna, designed for shore installation, comprises four OE-82A/WSC-1(V) backplane assemblies and is used in conjunction with the AN/WSC-5(V) transceiver. The antenna does not have automatic tracking capabilities and must be manually oriented for satellite azimuth and elevation angles. Once the satellite is acquired, locking devices permit antenna stability in order to maintain maximum signal strength. The antenna provides coverage through 360o of azimuth and for elevation to 110o above the horizon. The antenna transmit and receive polarization is right-hand circular and provides a nominal gain of 15 dB for transmit and 18 dB for receive.

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NTP 2 SECTION 2(E)

Figure 2-15 OE-82C/WSC-1(V) Antenna Group

The transmit frequency range is 292 to 312 MHz and the receive frequency range is 248 to 272 MHz. Figure 2-16 illustrates the AN/WSC-5(V) shore station antenna.

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NTP 2 SECTION 2(E)

Figure 2-16 AN/WSC-5(V) Shore Station Antenna

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NTP 2 SECTION 2(E) c. Rekey HR9NP Antenna. Installed at various shore sites, the HR9NP antenna is used for reception of fleet broadcast transmissions and subsequent rekey via a high frequency (HF) medium. The nine-turn helical antenna with a 48-inch ground plane is pedestal mounted and manually adjusted in azimuth and elevation. Locking devices permit antenna stability to maintain optimum signal strength. The antenna uses right-hand circular polarization and operates in the 215 to 260 MHz frequency range. The HR9NP rekey antenna provides a nominal gain of 13 dB. Figure 2-17 illustrates a HR9NP antenna. d. Andrew 58622 Antenna. This device is a bifilar, 16-turn helical antenna. The polarization is circular with gain varying between 11.2 dB and 13.2 dB in the 240 to 315 MHz frequency band. A 39-inch ground plate is provided and the antenna is approximately 9 feet, 7 inches long. It can be manually adjusted for azimuth and elevation look angles. The antenna is used at various shore installations for transmit and receive operations. Figure 2-18 illustrates an Andrew 58622 antenna.

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NTP 2 SECTION 2(E) e. TACO H-124 Antenna. This antenna is a 12-turn helix with a 55-inch diameter ground plate, mounted on a 4-inch diameter stub. Azimuth and elevation positioning adjustments are manual. Locking devices provide stability to maintain o r i e n t a t i o n . Polarization is righthand circular with a 16 dB gain at frequencies from 240 to 315 MHz. The swing radius of the antenna is 12 feet. The antenna is used at shore sites. Figure 2-19 illustrates a TACO H-124 antenna.

Figure 2-17 HR9NP Antenna

f. TACO H-084 Antenna. This shorebased antenna is an 8-turn helix (13.6-inch diameter) with a 55-inch ground plate, mounted on a 3-inch diameter stub 21.1 inches long. It is manually adjustable in both azimuth and elevation and locks in position to maintain orientation. Polarization is right-hand circular. There is a 13.3 dB gain at frequencies from 240 to 315 MHz. The antenna swing radius is 9 feet, 4 inches. Figure 220 illustrates a TACO H-084 antenna.

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NTP 2 SECTION 2(E) 206.

UHF SATCOM SYSTEM

The UHF SATCOM system consists of information exchange subsystems that use the satellites as relays to exchange communications data among shore sites, ships, submarines, aircraft, and mobile units. Each subsystem is structured to meet specific naval c o m m u n i c a t i o n s requirements. Within the constraints of equipment capability, each subsystem addresses the unique requirements of the user and the environment in which the user operates. The following descriptions are intended to provide a basic understanding of these subsystems.

Figure 2-18 Andrew 58622 Antenna

a. Fleet Satellite Broadcast Subsystem. The SHF (AJ) Fleet Satellite Broadcast Subsystem provides the capability to transmit fleet broadcast message traffic in a high-level jamming environment. The subsystem has 15 subchannels of encrypted message traffic at an input data rate of 75 bps per channel. Subchannels are TDM and transmitted in a one-way RF transmission at 1200 bps. The AN/FSC-79 shore terminal transmits data on a direct sequence spread-spectrum SHF signal to FLTSAT or LEASAT satellites, where the signal is translated to UHF and downlinked to the subscribers. (1) The structure of the fleet broadcast transmission provides 15 subchannels for general service (GENSER) message traffic, special intelligence (SI) message traffic, and fleet weather data, each operating at 75 bps. A sixteenth subchannel is used for frame synchronization. GENSER message traffic is entered into the Naval Communications Processing and Routing System (NAVCOMPARS) processor at the NCTAMS. It can also be input automatically to the processor when the message traffic is received from an Automatic Digital Network

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NTP 2 SECTION 2(E) (AUTODIN) switching center. The same general process is applicable for entering SI messages from the STREAMLINER processor. Fleet weather data is input directly to the system by teletypewriter or a recorderreproducer. (2) T h e equipment employed in the receive side of the fleet satellite broadcast is the AN/SSR-1A which receives, demodulates, and demultiplexes the SATCOM downlink signal. The demultiplexed output data stream from the Figure 2-19 receiver is decrypted TACO H-124 Antenna and passed into the NAVMACS or TACINTEL processors for message screening and printing. Weather data is sent directly to teleprinters after decryption. Subscribers that do not have NAVMACS or TACINTEL processors guard selected fleet satellite broadcast subchannels and output the data directly to teleprinters or processors. Procedural information related to the fleet satellite broadcast is found in annex A. b. Officer in Tactical Command Information Exchange Subsystem (OTCIXS). OTCIXS provides a two-way satellite link (half-duplex mode) to support inter- and intrabattle group over-the-horizon targeting (OTH-T) and communications requirements. OTCIXS passes C2 teletypewriter message traffic and tactical data processor (TDP) formatted data on an automatically controlled time-shared basis over the same OTCIXS satellite channel. The teletypewriter is used to pass tactical C2 information while the TDP is used to exchange C2, surveillance, and targeting information primarily among surface ships and submarines within a battle group. Information can be exchanged between battle groups when more than one battle group is operating on the same OTCIXS channel.

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NTP 2 SECTION 2(E) (1) O T C I X S operation relies upon the ON-143(V)6/USQ satellite link controller. The OTCIXS ON-143(V)6/USQ provides automatic cryptographic synchronization, storage, and forwarding of incoming and outgoing teletypewriter and TDP traffic. It also controls satellite link access. (2) Control of transmissions in an OTCIXS network is achieved by a polling and controlled-access protocol resident in the OTCIXS satellite link controller. OTCIXS Figure 2-20 operates in a halfTACO H-084 Antenna duplex mode at a data rate of 2400 or 4800 bps. Procedural information related to OTCIXS is found in annex B. c. Tactical Data Information Exchange Subsystem A (TADIXS A). TADIXS A is designed to support the broadcast of OTH-T information from shore to afloat TDP computer systems, which support naval warfare operations. (1) TADIXS A provides integrated worldwide one-way broadcast connectivity supporting naval warfare, using both dedicated terrestrial connectivity and satellite links. The shore user systems interface via terrestrial connectivity or SATCOM connectivity with the RF assets located at the four NCTAMS and at NAVCOMMSTA Stockton, CA. (2) Each TADIXS A network must have a Net Control Station (NECOS), normally the TADIXS A gateway; however, any subscriber in the network capable of transmission is capable of performing the NECOS function. The NECOS grants permission to transmit data to one subscriber at a time. Each subscriber in the TADIXS A network has a unique subscriber identification (SID) number recognized by the subscriber processor. The SID

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NTP 2 SECTION 2(E) serves as the initial basis upon which incoming message traffic is screened. Procedural information related to TADIXS A is found in annex B. d. CUDIXS/NAVMACS. CUDIXS is a shore-based system of processors and peripheral equipment that enables link control of the SATCOM RF network and message traffic processing. NAVMACS has similar equipment at afloat subscriber terminals, and conforms to the CUDIXS link-control protocol to process message traffic. Collectively, CUDIXS/ NAVMACS provides enhanced ship-toshore and shore-to-ship communications that feature increased message traffic volume throughput and improved link reliability. The structure of CUDIXS link control supports a network membership of 60 special subscribers within each network. (1) The primary relay point ashore for message traffic to be transmitted or received on the CUDIXS/NAVMACS RF link is the NAVCOMPARS. Message traffic for transmission on the CUDIXS link can be input to NAVCOMPARS by over-the-counter facilities at the NCTAMS's. Message traffic that originates from other locations is delivered to the NAVCOMPARS processor by AUTODIN or other NAVCOMPARS termination links. (2) Message traffic received by NAVMACS afloat is output to peripheral equipment or to message processors. Each active subscriber to a CUDIXS net is assigned a SID, by a CUDIXS NECOS, for recognition by the NAVMACS terminals. Additional information related to CUDIXS/NAVMACS is found in annex C. e. TACINTEL. The TACINTEL subsystem AN/USQ64(V)7 is one of the battle force information management systems and is used for the transmission of SI communications. The present system is a 2400/4800 baud, netted, computerized DAMA communications link that enables receipt and transmission of message traffic via UHF satellites using DAMA-equipped channels. A polling scheme supports a net membership of up to 23 shipboard terminals and a shore TACINTEL Link Control Facility within a satellite footprint. A DAMA slot of one UHF 25kHz channel has been allocated for TACINTEL on various FLTSATCOM satellites. The shipboard terminal is used for handling TACINTEL message traffic as well as screening up to a maximum of two channels of the fleet satellite broadcast. Procedural information related to TACINTEL is found in the classified annex D, which is published separately.

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NTP 2 SECTION 2(E) f. UHF DAMA Subsystem. The UHF DAMA subsystem provides users with increased communication capacity and reliability over dedicated access on the FLTSAT and LEASAT satellites. The additional capacity is provided by the multiple access feature of DAMA. Increased reliability is provided by the application of forward error correction (FEC) and data interleaving techniques. The heart of the UHF DAMA subsystem is the TD-1271B/U TDM which is capable of multiplexing many combinations of SECVOX, teletypewriter, and data subsystems onto a single 25-kHz UHF satellite channel, permitting increased use of the channel. DAMA output data is organized into frame format, each containing a strictly defined sequence of time intervals (time slots). The large number of available frame formats permits reallocation of assets to meet dynamic tactical requirements while continuing to provide service to long-term dedicated users. Procedural information related to DAMA is found in annex E. g. Submarine Satellite Information Exchange Subsystem (SSIXS). SSIXS was planned to augment very low frequency (VLF) and low frequency (LF)/medium frequency (MF)/ HF communication links between shore-based submarine Broadcast Control Authorities (BCA's) and submarines. SSIXS provides the submarine commander with the means to receive Group Broadcast messages transmitted at scheduled times via the satellite. Submarines may transmit a request (Query/Response mode) for any messages held in queue to the BCA between Group Broadcasts. The shore terminal responds to these requests with acknowledgments for individual messages just received, and transmits all messages held for the querying submarine. The availability of the two modes of operation, Group Broadcast and Query/Response, permits the submarine commander the choice of being active or passive at his discretion. A 25-kHz channel on FLTSAT and/or LEASAT satellites has been allotted to SSIXS. A SSIXS network may have up to 120 submarine subscribers and may be established on more than one satellite channel. Two BCA's may share a single satellite channel by offsetting the time of their respective Group Broadcast transmissions. (1) SSIXS shore sites have received a major upgrade referred to as SSIXS II. The submarine SSIXS terminal remains the same. Procedural information related to SSIXS is found in annex F. at

the

(2) The SSIXS II baseband equipment installed BCA locations ashore serves the following

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NTP 2 SECTION 2(E) purposes: Accepts messages for delivery to submarines via either satellite or VLF paths, and receives messages from submarines via the satellite for forwarding; and Provides the shore SSIXS II operator with the capability to compose and control the multichannel VERDIN submarine broadcast through an interface with the Integrated Submarine Automated Broadcast Processing System. h. SECVOX Subsystems. The SECVOX Subsystem provides the means for transmission of ship-to-ship, ship-to-shore, and shore-to-ship SECVOX communications. These subsystems have dedicated channels or DAMA time slots on FLTSAT and/or LEASAT. The AN/USC-43(V) Terminal Set, commonly known as the Advanced Narrowband Digital Voice Terminal (ANDVT) is a SECVOX and data terminal for airborne (AIRTERM), land-based (MINTERM), and shipboard (TACTERM) communications networks. Currently, ANDVT is only used for ship-to-shore-to-ship SECVOX; however, AIRTERM and MINTERM versions are near delivery. (1) Ship-to-Shore-to-Ship. UHF SATCOM shipto-shore-to-ship SECVOX communications are provided through the use of the Satellite Radio Wireline Interface (SRWI) equipment located at various naval communications facilities ashore. Shipboard ANDVT calls are extended to Secure Telephone Unit, Third Generation (STU-III) equipment ashore through operator interface at the SRWI. The SRWI operator monitors the appropriate SATCOM channel for incoming ANDVT SECVOX calls from afloat units and extends the calls to STU-III users ashore via public telephone networks or the Defense Switched Network. The SRWI operator also has the capability of extending STUIII calls originated ashore to any ANDVT equipped afloat unit monitoring the appropriate SATCOM channel. (2) Ship-to-Ship. UHF SATCOM ship-to-ship SECVOX communications are provided using ANDVT, or CV3333/KG-36 equipment on either dedicated SATCOM channels or shared SATCOM DAMA time slots. i. Fleet Imagery Support Terminal (FIST). FIST provides tactical and strategic imagery intelligence support to national and theater level command authorities and to forward-deployed U.S. Navy and Marine Corps

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NTP 2 SECTION 2(E) commanders. FIST is installed on aircraft carriers, amphibious command ships, amphibious assault ships, flag configured ships, and at shore intelligence centers. FIST imagery is transmitted between shore intelligence centers, ships, and other remote users through a UHF SATCOM link using KG-84A/KG-30 series encryption devices. Secure telephone systems are also used. FIST uses the National Imagery Transmission Format, which provides joint service interoperability. Procedural information related to FIST is found in annex G. j. Tactical Related Applications (TRAP) Broadcast System. The TRAP Broadcast system, AN/USC-51(V), is a computer-based communications system that generates a worldwide UHF broadcast via U.S. Navy UHF SATCOM channels for rapid delivery of near-real-time tactical, quality targeting information in support of a broad community of designated multi-service users equipped with variations of the Tactical Receive Equipment (TRE). The TRAP Broadcast system provides the capability to automatically transmit locally and remotely generated data via single path, dedicated communications links. (1) As currently deployed, TRAP consists of five single channel systems, four dual channel systems, and one mobile single channel system. The basic capability of each system is to process and reformat up to three source data inputs, and transmit the data according to operator set criteria in an efficient packed-binary modulation format on assigned UHF frequencies. Dual channel sites are positioned within the footprint of two satellites and provide interfootprint relay of data to complete the worldwide network. (2) The TRAP Broadcast shares a 25-kHz UHF channel with a primary user, usually fleet SECVOX. Due to downlink frequency restrictions, the broadcast is operated only on FLTSAT channels 2-6 and LEASAT channels 3-7. TRAP further time-shares these offset channels because two or more nodes are located within each satellite footprint. Each TRAP node transmits a combination of report, text, or synchronization data during their assigned slot(s) of the broadcast cycle. (3) TRAP data is afforded wider dissemination to non-TRE equipped users through gateways to the TADIXS A network at selected Ocean Surveillance Information System (OSIS) nodes. The TRAP/TADIXS A gateways receive the TRAP downlink, convert it into TADIXS A format, and

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NTP 2 SECTION 2(E) forward selected data on to units equipped to receive TADIXS A. Additional information related to TRAP and TRE is found in section 207 and classified annex H. k. Monitoring System. The following monitoring equipment provides for day-to-day management of the FLTSATCOM system by NCTAMS personnel who monitor frequency plans, channel availability, and power balancing. Monitoring equipment can also be used as an aid in troubleshooting during interference situations. (1) Interim FLTSATCOM Spectrum Monitor (IFSM). The IFSM's installed at NCTAMS and NAVCOMMSTA Stockton, CA interface with the AN/WSC-5(V) transceivers to monitor the uplink and downlink frequencies. The IFSM is a real-time signal processing system that uses a computer to control a Hewlett-Packard spectrum analyzer and a switch/control unit via an interface board located in the computer's expansion slot. The IFSM operational program will initialize and run at initial turn-on. There are two modes of operation: manual entry mode and reduced capability mode. Manual entry mode selection is initiated through keyboard control or optional mouse control. The reduced capability mode provides a means to operate the spectrum analyzer and switch/control unit when the computer is not operational. (2) AN/FSQ-131 SATCOM Signal Analyzer (SSA). Production versions of the AN/FSQ-131 will replace the IFSM at the NCTAMS and will also be installed at NAVCOMTELSTA San Diego, CA. The SSA provides simultaneous monitoring of all U.S. Navy UHF SATCOM RF signals. The SSA facilitates analysis of radio frequency interference (RFI) through spectrum analysis, precise frequency measurements, demodulation, and recording of data for later analysis. It allows for identification of local RFI by isolating and recording the signal for further analysis. The SSA interfaces with the shore station AN/WSC-5(V) transceiver and the OK-481(V)2/FSC Control Monitor Group to provide uplink and downlink monitoring. It has a self-contained antenna system and performs self-test and calibration. The key feature of the SSA is its use of the fast Fourier transform technique which allows realtime analysis of the Information Exchange Subsystem and UHF DAMA signals which are not technically possible with the IFSM. The main functions of the SSA are: -

Display of spectrum

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satellite RF signal (amplitude versus

ORIGINAL

NTP 2 SECTION 2(E) frequency),

207.

-

Waterfall display of satellite RF signal spectrum (amplitude versus frequency versus time),

-

Remote display terminal monitoring,

-

Modulation verification and display,

-

Signal demodulation,

-

Display of local RF uplinks and downlinks,

-

Display of frequency versus history of any RF signal,

-

Downlink EIRP measurements,

-

Signal bandwidth measurements,

-

Data bit rate measurements,

-

Precise frequency measurements,

-

Recording of signals for comparison and analysis,

-

Power balance measurements,

-

RFI/jammer alarm,

-

System calibration of SATCOM links,

-

High-speed digital spectrum analysis using fast Fourier transform,

-

Printout of data, and

-

Computation of data for analysis.

time

FUTURE DEVELOPMENTS - UHF SATCOM SUBSYSTEMS

Increased demands for satellite access, new technological developments, and changes in threat all provide motivation for modifications to existing SATCOM subsystems. a. VERSAmodule Eurocard (VME) Architecture. The VME architecture consists of VME cards and a VME bus

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NTP 2 SECTION 2(E) (chassis) that provides interface with newer technologies while maintaining compatibility with old technologies. The VME architecture is currently being implemented and developed by several program sponsors within the U.S. Navy (i.e., NAVMACS II, TACINTEL II, TRE). The VME design allows multiple microprocessors to be housed in one chassis. (1) The VME chassis contains a standard backplane interface that facilitates the consolidation of data processing and storage. The VME chassis houses the VME cards and provides for RED/BLACK partitioning within the chassis. (2) The universal sizes of VME cards support the use of commercial off-the-shelf microprocessor boards as well as cards designed for specific subsystems. The functions of VME cards will vary according to functional design requirements (i.e., receiver, signal amplification, signal distribution, decoding, demodulation processing, system controller, and embedded crypto). VME cards are capable of supporting single or multiple functions on a single card, depending on the system design requirements. b. TACINTEL II+. The TACINTEL II+ Subsystem will be a computer-based message communication system enabling automatic receipt and transmission of SI communications for both ashore and afloat users while remaining interoperable with the present TACINTEL during the transition. (1) Nine different basic message types shall be supported by TACINTEL II+ with other types and formats to be identified in support of Integrated SI Communications Architecture requirements. In conjunction with the Communication Support System (CSS), options in configuring baseband interfaces and the use of up to six different communications media provides system flexibility. A TACINTEL II+ subscriber may participate in up to six TACINTEL II+ RF nets with automatic message routing between nets. A new TACINTEL II+ equipment suite is being developed to implement these functions with Initial Operational Capability (IOC) expected in the early to mid 1990's. (2) The TACINTEL II+ Subsystem will be designed with sufficient flexibility so that future SI

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NTP 2 SECTION 2(E) communication requirements can be easily incorporated. TACINTEL II+ will have the capability to receive, route, and transmit messages automatically on a priority basis. The system will be capable of communications via any required media in either net or point-to-point configurations. Communications across any mix of these media shall be possible: UHF LOS, UHF satellite, SHF satellite, EHF satellite, HF, or landline. (3) The design of TACINTEL II+ software such that data could be automatically switched by CSS different media to provide the most efficient use communications assets. TACINTEL II+ will be sized that the equipment can be installed and used restricted areas (vans, aircraft, etc.).

is to of so in

c. High Speed Fleet Broadcast (HSFB). The HSFB multiplexes individually encrypted broadcast packages generated from multiple user subsystems. These broadcast packages are multiplexed into a 9600 bps aggregate bit stream used in the satellite transmission and a separate 1200 bps bit stream for use in HF. The 9600 bps bit stream will carry a 1200 bps GENSER message broadcast, 1200 bps oceanographic/meteorological broadcast, and capacity for Fleet Commander-in-Chief requirements. Multiplexing permits multiple user subsystems to share available satellite capacity, and at the same time, allows a measure of flexibility in altering subsystem bit rates in response to varying tactical operating needs and environments. The addition of FEC to the signal enhances broadcast reliability and quality and provides for theadditional bandwidth margin necessary to effectively counter satellite jamming and interference. Transmission is effected through the OM-51A/FR spread spectrum modem and AN/FSC-79 satellite terminal. Mobile platforms receive the HSFB via the modified AN/SSR-1A SATCOM receiver. Through the demultiplexing process, information is output in a variety of data rates and passed to individual cryptographic devices and processors as required. HSFB IOC is anticipated in 1993. The single integrated satellite broadcast (SISB) has been incorporated into HSFB. Previously planned SISB capabilities are now included in HSFB as shown in figure 2-21. d. CUDIXS/NAVMACS II. The phased approach for rehosting the current NAVMACS system on a VME/DTC-2 architecture (NAVMACS II) is intended to meet growing

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NTP 2 SECTION 2(E) fleet needs by: increasing data rates (4.8, 9.6, and 19.2 kbps); modernizing the system based on VME technology; providing large on-line message storage (up to a 2.4 gigabyte disk); and incorporating local area network capabilities. (1) The integration of CUDIXS/NAVMACS II into the DAMA subsystem will result in bandwidth conservation, and provide greater flexibility for fleet commanders to maximize allocation of resources. (2) The CUDIXS rehost effort consists of replacing the AN/UYK-20 computer and most of the current peripheral devices while allowing execution of the existing AN/UYK-20 program. This will be accomplished using processor boards installed in a VME chassis, as well as a DTC-2 and associated peripheral devices. Follow-on phases will upgrade the software to enhance operations. IOC for the CUDIXS/NAVMACS II is 1992. e. TADIXS A Phase IV. implemented in four phases.

TADIXS

A

is

being

(1) In the current Phase III, TADIXS A was established as a dedicated network separate from OTCIXS. In Phase IV, IOC 1992, sophisticated gateways will be installed (replacing the interim gateways) to provide enhanced data routing and broadcast capabilities for both OTCIXS and TADIXS A. Implementation of TADIXS A Phase IV does not require any shipboard procedural changes or equipment modifications. (2) The AN/USQ-64(V)9 TADIXS A Gateway Facility (TGF) will provide integrated worldwide connectivity among the OTH-T community, using both terrestrial and satellite links through a series of computer-controlled switching nodes. TGF's will be located at NCTAMS MED, NCTAMS EASTPAC, NCTAMS WESTPAC, NCTAMS LANT, and NAVCOMMSTA Stockton, CA. All OTCIXS and TADIXS A shore user's ON-143(V)6/USQ interconnecting groups (IG's) will be modified to conform with AN/USQ64(V)10 TDP Controller specifications.

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NTP 2 SECTION 2(E)

Figure 2-21 HSFB Block Diagram

2-54

NTP 2 SECTION 2(E) f. OTCIXS II. Presently, OTCIXS is not DAMAcompatible. In conjunction with the implementation of TADIXS A Phase IV, IOC 1992, new OTCIXS firmware will be installed which will be DAMA-compatible. OTCIXS II can be operated in a DAMA or non-DAMA configuration; however, all users on a particular net must be similarly configured. Communications between OTCIXS and OTCIXS II users must be accomplished via the TGF. g.

DAMA

(1) Mini-DAMA integrates the TD-1271B/U multiplexer and the AN/WSC-3 transceiver into a single unit, significantly reducing the size and weight of the system. Mini-DAMA also supports additional UHF communications modes, such as interoperable 5-kHz Air Force time division multiple access (TDMA), 5-kHz U.S. Navy non-TDMA, and UHF LOS communications. Capabilities of Mini-DAMA include embedded COMSEC, satellite link protocols, and eight ports. Three versions of Mini-DAMA are being developed: the AN/USC-42(V)1 Mini-DAMA for ship, submarine, and selected shore installations; the AN/USC-42(V)2 Auto-DAMA for major shore installations (i.e., the NCTAMS's) and major combatants/flagships; and the AN/USC-42(V)3 Mini-DAMA for aircraft. The AN/USC42(V)2 is identical to the AN/USC-42(V)1 with the addition of Auto-DAMA cards. The anticipated IOC for mini-DAMA is 1994. Figure 2-22 illustrates a Mini-DAMA configuration.

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NTP 2 SECTION 2(E)

Figure 2-22 Mini-DAMA Configuration

(2) DAMA Controller. As more DAMA multiplexers are developed and fielded, more 25-kHz UHF SATCOM channels will use DAMA. To effectively manage the increasing number of DAMA resources, a DAMA controller is being developed and fielded in phases. During the first phase, a DAMA Semi-Automatic Controller, which uses the semi-automatic control mode of the TD-1271B/U to allocate and control the UHF DAMA subsystem resources will be developed. When the AN/USC-42(V)2 Auto-DAMA (part of the Mini-DAMA project) is developed, the DAMA Semi-Automatic Controllers will also be upgraded to support the fully automatic DAMA control mode and to support the CSS and Copernicus architecture. h. TRE. The purpose of TRE is to support OTH-T for TOMAHAWK cruise missile weapons firing, target changes, and tactical intelligence requirements. TRE receives, decrypts, filters, formats, and distributes incoming TADIXS B broadcast data to TDP's, such as the U.S. Navy Tactical Command Systems Afloat, TOMAHAWK Weapons Control System, Combat Control System MK II, Electronic Warfare Control System, and OSIS Baseline Upgrade.

2-56

ORIGINAL

NTP 2 SECTION 2(E) (1) There developmental models installed on ships and submarines and at U.S. production models will system architecture.

are two basic engineering of TRE: the AN/USQ-101(V)3 the AN/USQ-101(V)4 installed in Navy shore sites. Both system be fielded using the VME open

(2) TRE has the capability for simultaneous operation of up to two TADIXS B broadcast channels and one satellite fleet broadcast channel. TRE has automatic control capabilities to determine allocation of TRE resources and processing to minimize manual intervention. Additional information relative to applications of TRE is in classified annex H, which is published separately. The first installations of TRE are scheduled for 1994.

208.

BASEBAND EQUIPMENT

a. AN/UYK-20(V) Processor. The AN/UYK-20(V) is a militarized processor designed for small and mediumsized processing applications for shipboard or shore facilities. CUDIXS, NAVMACS, TACINTEL, and Surveillance Towed Array Sensor System use the AN/UYK-20(V). The AN/UYK-20(V) has a 64K (65,536 word) memory (a word is 16 bits in length, double-length words of 32 bits can be used). The processor has 16 and 32 bit instruc-tions and 8, 16, and 32 bit operands. The main memory cycle time is 750 nanoseconds and has 16 general registers, a realtime clock, and a non-destructive, read-only memory. There are 16 input and 16 output channels in the processor. These input/output (I/O) channels are mixed parallel synchronous and asynchronous, with different voltage levels representing "1" and "0". b. ON-143(V)/USQ Interconnecting Group (IG). The ON-143(V)/USQ IG serves func-tions related to I/O channels of the control processor. Equipment configurations vary, depending upon the circuit cards and modules installed. The ON-143(V)/USQ provides RED/BLACK isolation, synchronization of crypto units, data level conversions, and crypto test signals. It also provides crypto control, satellite link control, and interfaces baseband subsystem components when used in a AN/USQ-64(V) configuration. The IG has several variations, some of which are listed in table 2-15.

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ORIGINAL

NTP 2 SECTION 2(E) ON-143(V)/USQ VARIATION

USE

(V)1 (V)2

Versions (V)1 and (V)2 in conjunction with the AN/UYK-20 were used on submarines and have since been replaced by versions (V)5 and (V)6.

(V)3

All (V)3 versions have been converted to (V)4 versions by a field change installation of audio-digital circuit cards.

(V)4

Used primarily for shore or surface ship installations (TACINTEL ship and shore, CUDIXS/NAVMACS, SSIXS shore, SECVOX).

(V)5

Microprocessor controlled. terminals.

(V)6

Microprocessor controlled. Used on OTCIXS, SSIXS subscriber, TADIXS A, and SECVOX.

(V)7

Microprocessor controlled. Used on NAVMACS equipped ships with the Message Processing and Distribution System (MPDS) or the Communications Data Processing System (CDPS). Does not have a capability to screen the Fleet Broadcast, but can be used in DAMA configured installations.

(V)8

Microprocessor controlled. CUDIXS/NAVMACS, SSIXS Shore, SECVOX. Same as (V)4, but interfaces with the TEMPEST model 40 teletype unit.

(V)9

Microprocessor controlled. CUDIXS/NAVMACS. Fallback capabilities to perform functions of the ON-143(V)4/USQ (under development).

(V)11

Modified version of the ON-143(V)6/USQ for use with TRE terminal.

Used on SSIXS subscriber

ON-143(V)/USQ Variations Table 2-15 c. AN/FYK-29 DPS. The AN/FYK-29 is used to store the SSIXS II operating program which controls parameters for SSIXS II shore operations. The device contains a central processor, 48 megabits of memory, and various modules that provide interface with the I/O devices. The AN/FYK-29 includes a color monitor and keyboard. d. AN/FYK-33 Submarine Message Automated Routing Terminal (SMART). The AN/FYK-33 is a desktop computer modified to meet TEMPEST specifications. SMART has been approved by Defense Information Systems Agency (DISA) as the interface between AUTODIN and the AN/FYK-29.

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ORIGINAL

NTP 2 SECTION 2(E) e. AN/UYK-44(V) Data Processing Set (DPS). The AN/UYK-44(V) is a general purpose computer that has been militarized to provide service in a variety of applications. All units of the DPS exchange data and memory over a common bus, and are called bus users. The AN/UYK-44(V) has two memory options: Option A allows a maximum of four memory modules that can be any mix of 64K core or 256K semiconductor modules up to a maximum of 1,048,576 words. Option B allows up to eight 256K semiconductor memory modules for a maximum of 2,097,152 words. f. TD-1150/USC TDM. The TD-1150/USC TDM is used in the Fleet Satellite Broadcast Subsystem. The multiplexer accepts up to fifteen 75 bps data channels and multiplexes them into a single 1200 bps output data stream. Primary internal components consist of printed circuit boards with built-in test capabilities for isolating faults to the card level. The internal clock accuracy is three parts in 105 over a temperature range of 0o to 50oC. The input data interface is MIL-STD-188 or MIL-STD-188 low-level. The interface selection is made by changing input cards. The output interface is MIL-STD-188 low-level which is available in balanced or unbalanced configurations for 1200 bps output. g. TD-1271B/U TDM. The key component of UHF DAMA is the TD-1271B/U. The TD-1271B/U is both a multiplexer and a modulator/demodulator (modem) which accepts up to four digital baseband signals at each signal's baseband data rate. Each signal is stored in a buffer until the appropriate time (determined by the time slot to which the signal is assigned). Each signal is then burst through the multiplexer's convolutional encoder, interleaver, and modu-lator at the transmission burst rate. Preambles are added prior to modulation. The modulated signal burst is sent to the transmitter for frequency translation to the selected UHF terminal for transmission. The reverse process occurs during reception; the received signal is demodulated, deinterleaved, decoded, and stored in a buffer at the transmission burst rate prior to being transferred to the baseband equipment at the baseband data rate. (1) Each TD-1271B/U provides four half-duplex I/O ports to interface with baseband equipment. Each port is capable of transmitting and receiving data at rates of 75, 300, 600, 1200, 2400, 4800, or 16,000 bps.

2-59

ORIGINAL

NTP 2 SECTION 2(E) However, if a port is selected to operate at the 16,000 baseband data rate, the other three ports are preempted from operation. The TD-1271B/U multiplexer will normally be mounted in one of four control-monitor groups: OK454(V)WSC (Single DAMA), OK-455(V)WSC (Dual DAMA), OK481(V)2/FSC (Large Shore DAMA), or OW-101/FSC, depending on the installation platform or site. (2) A self-test is performed as an integral part of equipment operation. This test is activated automatically by monitored voltage levels or events within selected functions during equipment operation. The test occurs when the I/O ports are inactive, requiring approximately 20 milliseconds to complete. Interface signals between the subscriber unit and the peripheral baseband equipment or subsystems are in accordance with MIL-STD-188-114. h.

Modulator/Demodulator (Modems)

(1) OM-51A/FR Modem. The OM-51A/FR modem is part of the Fleet Satellite Broadcast Subsystem. It is a spread spectrum modem, which when used in combination with the AN/FSC-79 SATCOM terminal, provides an RF transmission capability in a high-level jamming environment. The purpose of the modem is to provide RF analog and digital conditioning of circuits and frequency synthesizing for dual transmission and reception. The modem interfaces with the AN/FSC-79 terminal and the AM6543/SSR-1 amplifier-converter. The OM-51A/FR installation consists of a standard cabinet with seven slide-mounted drawer assemblies for the installation of the summary control panel, frequency synthesizer, receiver-synchronizer, coder-modulator, demodulator, and two power supplies. (2) OM-43A/USC Modem. The OM-43A/USC is used with the AN/WSC-5(V) UHF transceiver at shore installations. It performs DPSK modulation and demodulation of an input serial digital data stream at selected data rates of 75, 300, 1200, 2400, 4800, and 9600 bps. The OM-43A/USC can operate in full-duplex, although the normal operation for FLTSATCOM is halfduplex. The output IF is 70 MHz. The OM-43A/USC modem group installation consists of the MD-905A/USC modem and a C-9219A/USC control indicator. The OM-43A/USC can be used as a backup, not using spread spectrum, for the OM-51A/FR modem.

2-60

ORIGINAL

NTP 2 SECTION 2(E) (3) ON-163A/FR Interconnecting Indicator Group. The ON-163A/FR is installed with the OM-51A/FR modem. The group provides a secondary modulation mode for the AN/FSC-79. The equipment contains an OM-43A/USC modem, a power supply, a UHF and IF patch panel, a data patch panel, and three units of test equipment. The patch panel IF section provides the means to patch the output of either the OM-51A/FR or the OM-43A/USC as the uplink signal to the AN/FSC-79 transmitter. The UHF section has the means to patch a UHF test signal to an on-line AM-6534/SSR-1 down-converter. The data patch panel provides the means to patch the 1200 bps data stream to the input of the OM-51A/FR or OM-43A/USC. Test equipment consists of a frequency counter, spectrum analyzer, and UHF signal generator. i. Display Terminals. Two models of display terminals are installed for use with CUDIXS, NAVMACS and TACINTEL subsystems. The IP-1187A/USQ-64(V) controlindicator designed for shore baseband equipment installations is used in CUDIXS. The AN/USQ-69(V) alphanumeric digital data display terminal designed for shipboard installations, is used in NAVMACS and TACINTEL installations aboard ship. (1) IP-1187/USQ-64(V) and IP-1187A/USQ-64(V) Control-Indicators. The control-indicator has two variations: The IP-1187A/USQ-64(V) features special TEMPEST shielding; the IP-1187/USQ-64(V) does not include special shielding. Both versions provide half-duplex or full-duplex I/O to a processor. (2) The components making up the controlindicator terminal include a keyboard with key encoding electronics, a cathode-ray tube display and monitor unit, a power supply, and a circuit board with microcontroller, memory, and logic electronics. The keyboard is a standard 118 key separate assembly. It can be located up to five feet from the display unit. (The IP-1187A/ USQ-64(V) does not include a remotely located keyboard). Key strokes are encoded into ASCII 7-bit binary codes. The keyboard encodes 96 ASCII characters for transmission and display. Data organization is based on random access memory timesharing between control and display functions. (3) IP-1660/FSQ Operator Workstation. The IP-1660/FSQ consists of a monochrome data terminal with a 105-key keyboard. It has the capability to display 24

2-61

ORIGINAL

NTP 2 SECTION 2(E) lines of text in either an 80 or 132 column format, with the 25th line reserved for status comments. The IP1660/FSQ is used to process, send, and receive messages from the AN/FYK-29A DPS. (4) AN/USQ-69(V) Data Terminal Set. The AN/USQ-69(V) consists of a 15-inch diagonal screen monitor which can display a 2,000 character page, and a keyboard. Memory is available in two sizes: a 2,000 character capacity, one-page capability; and a 6,000 character, three-page capability. Memory overflows, as a result of computer output which initiates a computer interrupt or as a result of operator input, initiates an audible alarm. A manual control adjacent to the keyboard provides the means to adjust the intensity of the displayed page. (5) The keyboard design complies with applicable military specifications. Seven special keys initiate generation of unique 7-bit ASCII characters to the processor for serial interfaces and as an interrupt for parallel interfaces. The terminal installation does not require shock mounting. A power outage of up to one minute will not result in a loss of display data. j.

Recorders-Reproducers

(1) AN/USH-22(V) Recorder-Reproducer. The AN/USH-22(V) is a magnetic tape reel-to-reel device. It has two servo-controlled direct-drive dc torque motors to drive the tape reels. The AN/USH-22(V) is installed in CUDIXS and TACINTEL terminals at shore stations, and is used for long-term storage of message traffic and records. The tape unit includes two assemblies: a transport and a controller. One controller is capable of handling up to four tape transports. The tape unit is compatible with the AN/UYK-20(V) processor. (2) AN/USH-26(V) Recorder-Reproducer. The AN/USH-26(V) is used onboard ships equipped with TACINTEL and NAVMACS. It responds to processor-generated commands such as read/write, tape position, reset functions, and status requests. Processor-generated status requests cause the recorder to present a status word or count word. The tape position responses include rewind, space block, or space file. When space block is commanded, the recorderjumps from one gap to the next gap and bypasses the data between. A space file response

2-62

ORIGINAL

NTP 2 SECTION 2(E) involves moving the tape until a file mark is found on it. (3) RD-397(V)/U Signal Data RecorderReproducer. The RD-397(V)/U is employed in equipment installations at CUDIXS, NAVMACS, TACINTEL (ship and shore), and SSIXS shore facilities. This tape perforator/reader can punch tape at 63.3 characters per second and reads punched tape at a rate of up to 300 characters per second. The device is self-contained to the extent that it is complete with control logic, buffering, and power supplies. It will accept 5-, 6-, 7, and 8-level tapes without adjustment, and holds up to 1,000 feet of tape on the supply reel. Either paper or metalized Mylar tape may be used. (4) AN/USH-23(V) Recorder-Reproducer. The AN/USH-23(V) is employed at CUDIXS and TACINTEL shore installations and consists of three components: up to three disk drives; a power supply; and a disk controller. The AN/USH-23(V) has a random access storage capability of 48 million bits. The two independent disk drives are separately housed. One of the two disks is removable and one is fixed. (5) RP-357/FSQ Reproducer. The RP-357/FSQ is a computer controlled, magnetic tape storage device. The tape transport reads and writes nine-track ANSI format, phase encoded data at a density of up to 1600 bits per inch. Read and write operations are performed at a tape speed of 25 inches per second. k. Teletypewriters. Various teletypewriter models are used in UHF SATCOM subsystem installations. The particular model used depends on the requirement for subsystems installed. (1) AN/UGC-77 Teletypewriter. The AN/UGC-77 is a militarized U.S. Navy standard teletypewriter that can be portable or fixed. The unit has a standard communications keyboard, 72 characters per line, friction-feed synchronous motor, and a 7.42-unit code. Message traffic and operator notes are transmitted and received serially by means of a five-level binary permutation code. The AN/UGC-77 operates at 100 words per minute, weighs 59 pounds, and is 10 inches high, 16.5 inches wide, and 16 inches deep. Line voltage requirements are 115 V ac, single phase, 60 Hz.

2-63

ORIGINAL

NTP 2 SECTION 2(E) (2) AN/UGC-136 Teletypewriter. The AN/UGC136 teletypewriter is a militarized, low-level, automatic send and receive teleprinter. It has storage, editing, and self-test capabil-ities. The AN/UGC-136 is controlled by a microprocessor with an internal solidstate memory and has full message composition and editing capabilities. It prints data nominally at 120 characters per second (1200 bps), can transmit or receive at data rates of 50 to 2400 bps, and can operate in switchselectable Baudot or ASCII codes. The message storage module has a capacity of 12,288 characters. The AN/UGC-136CX is installed onboard submarines and the AN/UGC-136BX is installed on surface platforms. The primary difference between the AN/UGC-136CX and the AN/UGC-136BX is the AN/UGC-136BX has an LED display incorporated on the front panel to allow viewing of text for editing purposes when typed. The keyboard printer weighs approximately 59 pounds, is 8.5 inches high, 15.75 inches wide, and 17.4 inches deep. The power requirements are 115 V ac, 60 Hz, and 100 watts. (3) AN/UGC-143(V) Teletypewriter. The AN/UGC-143(V) U.S. Navy Standard Teletypewriter is a fully militarized unit. It features a modular design providing the compatibility for several different configurations: receive only with or without bulk storage; send/receive without bulk storage using the keyboard; or send/receive automatically with bulk storage. It prints 150 characters per second, ten characters per inch, six lines per inch and is capable of storing 500 kilobytes (250 messages, 2 kilobytes each). The power requirements are 115 V ac, 47-63 Hz, 440 watts, single phase. It weighs 180 pounds. (4) TT-624(V)5/UG or TT-624(V)6/UG Teleprinter. This teleprinter is used at CUDIXS, NAVMACS and TACINTEL installations. It may be used on-line with the AN/UYK-20 processor or off-line with tape readers, card equipment, and communications terminals. The device has a 64-character set capable of printing at speeds ranging from 365 lines per minute for 80 columns, to 1,100 lines per minute for 20 columns. It can print up to three additional copies using roll paper and five additional copies using fan-fold paper. The TT624(V)5/UG is an ITA-2 Baudot printer with a serial MILSTD-188C interface; the TT-624(V)6/UG is an ASCII printer with an U.S. Navy Tactical Data System slow parallel interface. It weighs 270 pounds and requires 115 V ac,

2-64

ORIGINAL

NTP 2 SECTION 2(E) 60 Hz, single phase power. (5) TT-835/U System Console. The TT-835/U is a microprocessor-based teletypewriter communications terminal. It is used for system initialization, backup and recovery operations, and provides a record of SSIXS II shore system response and alerts. The keyboard provides man/machine interface for operator control of the SSIXS II shore operational program. The operator can enter parameters when conducting diagnostic or programmed maintenance testing. (6) RO-600/U Line Printer. The RO-600/U is a microprocessor-based receive-only printer. It is connected to the on-line AN/FYK-29 and is used to print incoming or outgoing messages and system reports. This device is employed in SSIXS II installations. l. MU-851(V)1/U Magnetic Disk Memory Unit. The MU-851(V)1/U is a 205 megabytes, removable media, magnetic disk drive. It has the flexibility to be controlled by any AN/FYK-29 installed in SSIXS II. Selection of the controlling AN/FYK-29 is performed at the MU-851(V)1/U front panel controls.

2-65

ORIGINAL

NTP 2 SECTION 2(E) CHAPTER 3 NAVY ULTRA HIGH FREQUENCY (UHF) SATELLITE COMMUNICATIONS (SATCOM) CONTROL 301.

GENERAL

The Department of the Navy (DON) is the system manager for the Fleet Satellite (FLTSAT), GAPFILLER, Leased Satellite (LEASAT), and UHF Follow-on (UFO) communications systems. As system manager, the DON has delegated day-to-day operations to the Chief of Naval Operations (CNO). In performing the duties of operational manager, the CNO has further delegated the responsibility for operational control and management of these satellite systems to Commander, Naval Space Command (COMNAVSPACECOM). The CNO has also delegated selected functions to the Commander, Naval Computer and Telecommunications Command (COMNAVCOMTELCOM) who monitors the day-to-day control and operation of naval SATCOM assets and system resources to meet the communications needs of naval forces, Department of Defense (DOD), and non-DOD users. These monitoring functions are supported by the Naval Computer and Telecommunications Area Master Stations (NCTAMS's).

302.

AUTHORITY

Chapter 1 describes the various organizations providing direction for use and operations of the Fleet Satellite Communications (FLTSATCOM) system. From among those organizations, authority for operational control, technical management, and technical direction is as follows: a. Operational Control. The Chairman of the Joint Chiefs of Staff (CJCS), under authority of DOD Directive 5105.19, provides overall operational guidance for the Defense Communications System, including the FLTSATCOM system. The Chairman of the Joint Chiefs of Staff reviews and validates all Integrated SATCOM Database (ISDB) requirements and provides direction to the CNO for control and allocation of UHF resources. b. Technical Management. The Commander in Chief, U.S. Space Command (USCINCSPACE) is responsible to the Chairman of the Joint Chiefs of Staff for maintaining the

3-1

ORIGINAL

NTP 2 SECTION 2(E) health, status, and survivability aspects of the space segment. USCINCSPACE plans and executes satellite tracking and stationkeeping, and assists in the planning and integration of satellite systems. c. Technical Direction. Within the U.S. Navy, COMNAVSPACECOM as the system operational manager, plans and manages day-to-day operations at the system level for the FLTSATCOM system. Other technical direction includes design and development of satellite systems to satisfy validated requirements in support of operations by U.S. Navy and non-U.S. Navy users.

303.

RESPONSIBILITIES FOR OPERATIONAL MANAGEMENT

a. Joint Communications Satellite Center (JCSC). Within the guidance identified in CJCS Memorandum of Policy (MOP) 37, the JCSC (J6Z) supports the Chairman of the Joint Chiefs of Staff in carrying out the following responsibilities: (1) Resolves conflicts in resource allocation and implements CJCS direction for all matters relating to military satellite communications (MILSATCOM) allocation in support of contingency operations. (2) Serves as the DOD focal point for action requiring CJCS approval for MILSATCOM operational access. (3) Serves as the DOD apportionment of MILSATCOM capacity. (4) Monitors the status of MILSATCOM systems. (5) Assists emergency situations.

users

health in

focal and

gaining

point

for

operational access

in

b. USCINCSPACE. This unified commander is the principal advocate and advisor to the Chairman of the Joint Chiefs of Staff for MILSATCOM systems in support of Commander in Chief (CINC) requirements. In this capacity, USCINCSPACE plans for and executes activities in support of the health, status, and survivability of the space segment, as well as the tracking, stationkeeping, ephemeris data generation and spacecraft control. At the direction of the Chairman of the Joint Chiefs of Staff, USCINCSPACE provides payload control, assesses the impact of proposed satellite movements, and

3-2

ORIGINAL

NTP 2 SECTION 2(E) executes those movements. c. CNO. Acting for the DON in the role of system manager, CNO exercises overall operational management of FLTSAT, GAPFILLER, LEASAT, and UFO resources. System management includes implementation of assigned MILSATCOM systems; developing architecture, interoperability standards and system requirements; preparing programs and budgets and identifying shortfalls; maintaining system program plans; and advocating the need for systems supporting the DOD SATCOM architecture and CINC. d. Commandant of the Marine Corps (CMC). The CMC exercises overall management and validation authority for U.S. Marine Corps UHF SATCOM requirements, and forwards all requirements to CNO for authorization to access FLTSATCOM resources. e. COMNAVSPACECOM. As the system operational manager, COMNAVSPACECOM is responsible for day-to-day operational control and management of the FLTSAT, GAPFILLER, LEASAT, and UFO satellites, with the additional responsibility of the effective operation and maintenance of assigned U.S. Navy resources for the Department of Defense. As the Navy component of USCINCSPACE, NAVSPACECOM executes operational control (OPCON) of assigned resources by performing the following functions: (1) Plan for and execute the health, status and survivability aspects of the space segment. (2) Plan for and execute tracking, stationkeeping, and ephemeris generation (in cooperation with Air Force Space Command). (3) Provide spacecraft satellite is declared operational. (4)

control

after

a

Provide communications payload control.

(5) Support the operation of the appropriate satellite C2 operations centers. (6) Plan for constellation defense, and reconstitution.

protection,

(7)

Assess the impact of satellite moves.

(8)

Execute satellite moves.

3-3

ORIGINAL

NTP 2 SECTION 2(E) f. COMNAVCOMTELCOM. COMNAVCOMTELCOM is the communications manager for assigned UHF SATCOM resources. As such, the commander is responsible for communications connectivity for the fleet. COMNAVCOMTELCOM personnel (at the NCTAMS) act on behalf of the FLTCINC's to manage SATCOM assets allocated to the FLTCINC's. Specifically, COMNAVCOMTELCOM is responsible for: (1) Day-to-day operational direction and management control of U.S. Navy FLTSATCOM system assets which encompasses interface and coordination with other satellite control agencies; (2) Establishment of operating procedures and standards, and monitoring of user and earth terminal performance; (3) Consolidation of requests and allocation of resources, in coordination with CNO and Fleet Commanders in Chief (FLTCINC's), to meet CJCS validated requirements; and (4) Operational scheduling of the FLTSATCOM system to include validated non-U.S. Navy users and validated research, development, and testing requirements. g. FLTCINC's. The FLTCINC's have authoritative direction and control of assigned U.S. Navy UHF SATCOM functions, including naval broadcasts, ship-to-shore-toship, air-to-ground-to-air, and other designated tactical communications requirements within their area of operations. Authoritative direction and control encompasses the direction provided by the FLTCINC's to the NCTAMS for operational adjustments, or temporary network changes required to support contingencies or emergency situations, to improve the effectiveness of communications services, and to satisfy the operating requirements of naval forces. h. NCTAMS. NCTAMS allocates resources to satisfy operational requirements of the operating forces as directed by the FLTCINC. The NCTAMS responds to FLTCINC requests for information concerning status and utilization of SATCOM capabilities, and responds to FLTCINC direction for the reallocation of capabilities to meet emergency requirements.

3-4

ORIGINAL

NTP 2 SECTION 2(E) i. Table 3-1 lists the control activities responsible for UHF SATCOM management, including plain language address and Defense Switched Network (DSN) numbers.

3-5

ORIGINAL

NTP 2 SECTION 2(E) AUTHORITY/ OPERATIONAL MANAGER

PLAIN LANGUAGE ADDRESS//OFFICE SYMBOL//

DSN NUMBER

Chairman of the Joint Chiefs of Staff *

JOINT STAFF WASHINGTON DC//J6Z//

225-3700

USCINCSPACE

*

USSPACECOM PETERSON AFB CO //SPJ305//

692-5770

CNO

*

CNO WASHINGTON DC//943//

225-1340

CMC

*

CMC WASHINGTON DC//C4I2/CCT//

223-3135

COMNAVSPACECOM

*

COMNAVSPACECOM DAHLGREN VA//N31// NAVSPOC DAHLGREN VA 24 HR

249-7873 249-7771

COMNAVCOMTELCOM

*

COMNAVCOMTELCOM WASHINGTON DC//N32//

292-2600

CINCLANTFLT

*

CINCLANTFLT NORFOLK VA//N6//

934-5214

CINCPACFLT

*

CINCPACFLT PEARL HARBOR HI//N5//

(315) 4745877

CINCUSNAVEUR

*

CINCUSNAVEUR LONDON UK//N611//

(314) 2354182

NCTAMS LANT

NCTAMS LANT NORFOLK VA//N525//

564-4182

NCTAMS MED

NCTAMS MED NAPLES IT//N62//

(314) 6256426

NCTAMS EASTPAC

NCTAMS EASTPAC HONOLULU HI//N34//

(315) 4530118

NCTAMS WESTPAC

NCTAMS WESTPAC GQ//N81//

(315) 3555260

* Manned during normal working hours only.

U.S. Navy UHF SATCOM Control Activities Table 3-1

3-6

ORIGINAL

NTP 2 SECTION 2(E) 304.

SYSTEM CONTROL

a. The FLTSATCOM system control segment performs the functions of spacecraft and payload control. Telemetry, tracking, and command (TT&C) functions for the FLTSATCOM system are shared responsibilities of commercial contractors and military elements of the Department of Defense. Figure 3-1 illustrates the responsibilities of contractors and Department of Defense for control of the FLTSATCOM system.

Figure 3-1 FLTSATCOM Control System

3-7

ORIGINAL

NTP 2 SECTION 2(E) b. U.S. Air Force Consolidated Space Operations Center (CSOC). The control segment of the FLTSAT and UFO satellites provides stationkeeping tasks such as TT&C. These functions are assigned to the Air Force Satellite Control Network (AFSCN). A detachment of U.S. Navy personnel is stationed at the CSOC at Falcon AFB, CO to assist in the coordination of FLTSATCOM operations among the Services. A capability for transmitting selected control commands to the spacecraft is available through Remote Tracking Stations (RTS's) worldwide. c. FLTSATCOM Contractor-operated Facilities. Hughes Communications Services, Incorporated (HCSI) and Communications Satellite (COMSAT) General provide spacecraft support as coordinated by COMNAVSPACECOM. d.

LEASAT TT&C

(1) The LEASAT TT&C subsystem is technically controlled and monitored by the lessor, HCSI as directed by CNO. HCSI TT&C elements include the Contractor's Operations Control Center (COCC) at El Segundo, CA, Contractor Satellite Control Stations (CSCS's) co-located with the Government Satellite Control Stations (GSCS's) at NCTAMS Eastern Pacific (EASTPAC) Honolulu, HI; NCTAMS Western Pacific (WESTPAC) Guam; NCTAMS Atlantic (LANT) Norfolk, VA; NCTAMS Mediterranean (MED) Naples, Italy; Naval Communications Station (NAVCOMMSTA) Stockton, CA; and Movable Ground Stations (MGS's) at NCTAMS WESTPAC and LANT. (2) Management responsibility for government TT&C functions has been assigned to COMNAVSPACECOM. Management responsibility for operation and maintenance of TT&C uplink transmission equipment (e.g., AN/FSC-79, OM-51A modem) is assigned to COMNAVCOMTELCOM. Government responsibilities are accomplished through the control organization which includes the NAVSPACECOM Operations Center (NAVSPOC) and Naval Computer and Telecommunications Command Operations Center (NCTCOC), GSCS's located at the four NCTAMS and NAVCOMMSTA Stockton, CA. A U.S. Navy official at each GSCS is designated as the Contracting Officer's Technical Representative (COTR), and will in the event that COMNAVSPACECOM is not able to initiate required action, be authorized to direct the contractor to initiate commands affecting the configuration of the communications payload of the satellite. The LEASAT TT&C control organization is illustrated in figure 3-1.

3-8

ORIGINAL

NTP 2 SECTION 2(E) (3) All spacecraft commands are structured and coded by HCSI, transmitted by the COCC through the CSCS to the GSCS and uplinked at X-band through a U.S. Navy AN/FSC-79 terminal. No commands will be transmitted to the spacecraft via other than this primary mode unless authorized by COMNAVSPACECOM. (4) All commands which affect the communications payload will be in response to COMNAVSPACECOM direction except in emergency situations wherein immediate action must be taken by HCSI to protect satellite health. COCC will notify COMNAVSPACECOM within one hour of all emergency commands transmitted to the spacecraft. (5) COCC messages requesting U.S. Navy concurrence for non-catastrophic unscheduled commands (normal scheduled commands are contained in the contractor monthly satellite technical performance measurement report) to the satellite will be sent to COMNAV-SPACECOM for action via the NAVSPOC/NCTCOC/COCC LEASAT coordination circuit. (6) NAVCOMTELCOM requests for satellite reconfiguration of the communications payload or repositioning, etc. will be sent to COMNAVSPACECOM via the NCTCOC/NAVSPOC coordination circuit for action. (7) COMNAVSPACECOM response to requests for unscheduled commands, communications payload reconfigurations or repositioning, etc., will be sent via the NAVSPOC/NCTCOC/COCC LEASAT coordination circuit. (8) All satellite command requests/approval messages exchanged between HCSI and COMNAVSPACECOM concerning spacecraft commanding shall be confirmed via telephone after transmission via the LEASAT coordination circuit. (9) Telemetry monitoring and tracking functions are also accomplished through the U.S. Navy AN/FSC-79 terminal, GSCS and CSCS. Telemetry information processing is conducted primarily at the COCC, with appropriate data provided to the government in a monthly summary. e. The GAPFILLER satellite control function is performed by COMSAT General under the direction of CNO. The satellite control function includes the TT&C facilities at worldwide COMSAT earth stations, the COMSAT

3-9

ORIGINAL

NTP 2 SECTION 2(E) Control Center in Washington, D.C., and laboratories located in Clarksburg, MD. f.

the

COMSAT

UHF Follow-On (UFO)

(1) The UHF payload consists of twenty-one 5kHz channels, seventeen 25-kHz channels and one SHF uplink channel. UFO satellites 1 through 3 interface with the TT&C segment through the AFSCN and a Navy Satellite Control Network (NSCN). (2) The UFO TT&C ground systems include all equipment and software that currently exists for FLTSATCOM TT&C, including UFO mission unique software (MUS). Satellite control resides with the CSOC using AFSCN with its globally dispersed RTS's and through the NSCS employing the ground equipment at the NCTAMS's. The AFSCN provides full TT&C operations from launch through pre-operation checkout, telemetry reception, and alternate command and ranging during normal satellite operations. Implementation of satellite control, similar to that of FLTSATCOM, includes AFSCN personnel training at the contractor's facility, verification of software compatibility using AFSCN CSOC resources, direct satellite to AFSCN TT&C tests, and continuing maintenance via the AFSCN to contractor interface. The NSCS employs the existing AN/FSC-79 antenna and OM-51A modem ground processors operated at the same NCTAMS that controls the current LEASAT constellation, and provides the primary command and ranging radio frequency (RF) interface during normal operations. (3) The TT&C subsystem provides the ground interface and data processing for satellite TT&C services via: S-band RF, SHF RF interface, or digital equipment. The S-band RF equipment consists of redundant spaceground link system (SGLS) transponders, dual omni-log conical spiral antenna, and other associated hardware (diplexers, filters, switches, etc.). The SGLS equipment provides full TT&C operations with the AFSCN during launch, orbit injection and pre-operation on-orbit checkout and during the operational mission phase, telemetry data and an alternate command and ranging RF interface. The SHF RF interface equipment, along with the MD-942 processor, provide the interface with the NSCS's for secure, antijam satellite command and ranging. The digital equipment consists of redundant command decoders, telemetry encoders and other associated hardware. The command decoders process commands from either SHF or SGLS uplink channels and provide internal

3-10

ORIGINAL

NTP 2 SECTION 2(E) command for operational control of the spacecraft. (4) Commencing with the fourth satellite, UFO will have the capability of transmitting and receiving extremely high frequency (EHF) telemetry and command data. This capability is addressed in NTP 2 Section 3.

305.

SATELLITE CHANNELIZATION

Operational management of each channel of the integrated UHF satellite system is accomplished by the appropriate Service. In cases where spare U.S. Navy capacity is available, channel use may be assigned to a different Service. The following tables provide the channel allocation for FLTSAT (table 3-2) and LEASAT (table 3-3).

SATELLITE/ POSITION

CHANNEL

BANDWIDTH (kHz)

FREQ PLAN

OPERATIONAL MANAGER

FSC-8 23o W Atlantic Coverage

1 2-10 11-22 23

25 (FLTBCST) 25 5 500

B B B B

USN USN USAF USAF

FSC-7 100o W CONUS Coverage

1 2-10 11-22 23

25 (FLTBCST) 25 5 500

OFF C C C

USN USN USAF USAF

FSC-4 172o E Pacific Coverage

1 2-10 11-22 23

25 (FLTBCST) 25 5 500

OFF B B B

USN USN USAF USAF

FSC-1 177o W Pacific Coverage

1 2-10 11-22 23

25 (FLTBCST) 25 5 500

OFF A OFF A

USN USN USAF USN

COMMENTS

See Note

NOTE: All 25-kHz narrowband channels, except 8-10, are currently turned off due to frequency conflict with LEASAT-2 channels.

FLTSAT Channel Allocation Table 3-2

3-11

ORIGINAL

NTP 2 SECTION 2(E) SATELLITE/ POSITION

CHANNEL

BANDWIDTH (kHz)

FREQ PLAN

OPERATIONAL MANAGER

L-2 176o W Pacific Coverage

1 2 3-8 9-13

25 (FLTBCST) 500 25 5

X X X X

USN USN USN USAF

L-3 105o W CONUS Coverage

1 2 3-8 9-13

25 (FLTBCST) 500 25 5

Z W W W

USN USAF USN USAF

L-1 15o W Atlantic Coverage

1 2 3-8 9-13

25 (FLTBCST) 500 25 5

X X X X

USN USN USN USAF

L-5 72.5o E Indian Ocean Coverage

1 2 3-8 9-13

25 (FLTBCST) 500 25 5

W W W W

USN USN USN USAF

COMMENTS

Note 1

Note 2

Note 3

Note 4

NOTES: 1. LEASAT L2 channel 2 is inoperable. 2. LEASAT L3 channel 2 is inoperable. 3. Three high data rate accesses are allocated for assignment by the Air Force Satellite Communications Manager within the U.S. Navy power management scheme of the wideband channel. 4. Two high data rate accesses are allocated for assignment by the Air Force Satellite Communications Manager within the U.S. Navy power management scheme of the wideband channel.

LEASAT Channel Allocation Table 3-3

3-12

ORIGINAL

NTP 2 SECTION 2(E) CHAPTER 4 ULTRA HIGH FREQUENCY (UHF) OPERATIONS PROCEDURES 401.

GENERAL

a. The Chief of Naval Operations (CNO) has delegated to Commander, Naval Computer and Telecommunications Command (COMNAVCOMTELCOM) the responsibilities of communications manager for the Fleet Satellite Communications (FLTSATCOM) system. This includes, in coordination with Fleet Commanders in Chief (FLTCINC's), the authority to schedule non-U.S. Navy operational satellite communications (SATCOM) access requests and U.S. Navy testing on a preemptive basis. CNO has delegated to FLTCINC's the authority to approve or disapprove routine U.S. Navy satellite access requests for U.S. Navy allocated UHF capability in their geographic area. b. To support the operating forces of each FLTCINC, the authority to exercise operational direction over all NAVCOMTELCOM stations has been delegated on a geographic area basis to the Commanding Officer, Naval Computer and Telecommunications Area Master Stations (NCTAMS). The four NCTAMS's are the major Navy communications sites providing shore entry points for U.S. Navy tactical SATCOM. Each NCTAMS has, as part of its organization, an Area Operations Department and Fleet Telecommunications Operations Center (FTOC) which are focal points for fleet telecommunications support. COMNAVCOMTELCOM exercises overall operational direction to ensure integration of worldwide systems, taking into consideration the requirements and priorities of other FLTCINC's and higher authorities. c. The NCTAMS maintains and operates an FTOC which functions as the primary control point for day-today operations of the Naval Computer and Telecommunications System (NCTS) within that Naval Communications Area (NAVCOMMAREA). FTOC's will keep COMNAVCOMTELCOM and their respective FLTCINC fully informed of the operational status in their geographic area of responsibility on a near-real-time basis. Accurate and timely reports are required to apprise all concerned of any situation which could impair the ability of any element of the NCTS to support the Fleet or National Command Authorities (NCA). The FTOC's maintain control and coordination circuits with each station in

4-1

ORIGINAL

NTP 2 SECTION 2(E) their NAVCOMMAREA and with the adjacent NCTAMS. 402. SATELLITE ACCESS PROCEDURES a. This section provides instructions for the submission and review of requirements for mobile tactical UHF SATCOM services, and for the allocation of U.S. Navymanaged UHF SATCOM resources to satisfy validated requests for service. Navy-managed FLTSATCOM resources are Chairman of the Joint Chiefs of Staff (CJCS) validated requirements and fall into one of the following categories: (1) Operational Requirements. Operational requirements, including requirements for the NCA, Chairman of the Joint Chiefs of Staff, and unified and specified commanders in chief (CINC's) without preallocated assets (e.g., Commander in Chief, U.S. Central Command) will be coordinated through COMNAVCOMTELCOM, unless otherwise directed by CNO or higher authority. Operational requirements for U.S. Navy and U.S. Marine Corps units will be coordinated through the appropriate FLTCINC and NCTAMS. (2) Exercise Requirements. Exercise requirements, including CJCS, and unified and specified CINC's exercise requirements, will be coordinated through COMNAVCOMTELCOM, unless otherwise directed by CNO or higher authority. The exercise requirements for the U.S. Navy and U.S. Marine Corps will be coordinated through the appropriate FLTCINC and NCTAMS. (3) Test Requirements. Periodic allocation of U.S. Navy UHF SATCOM resources are required to support the continuing research, development, test, and evaluation efforts of Navy and non-Navy UHF SATCOM system development agencies. These requirements will be submitted by message to Commander, Space and Naval Warfare Systems Command (COMSPAWARSYSCOM) by the 15th of the month preceding the month service is required. COMSPAWARSYSCOM will submit a monthly message listing validated and prioritized RDT&E requirements to COMNAVCOMTELCOM for satellite channel assignment. The following is an example of an RDT&E request message. PRECEDENCE/DATE TIME GROUP FM ORIGINATOR TO COMSPAWARSYSCOM WASHINGTON DC//PMW 156// INFO JOINT STAFF WASHINGTON DC//J6Z//

4-2

ORIGINAL

NTP 2 SECTION 2(E) CNO WASHINGTON DC//943// COMNAVCOMTELCOM WASHINGTON DC//N32// OTHER ADDEES AS APPROPRIATE// // BT CLASSIFICATION //N02050// MSGID/GENADMIN/ / / // SUBJ/UHF SATELLITE RDT&E REQUIREMENT// REF/A/RMG/ORIGINATOR/DATE TIME GROUP// AMPN/ INFO ABOUT REF // POC/ / / / / // RMKS/1. SATELLITE DESIRED (FLTSAT-1, LEASAT-2) 2. TRANSPONDER (25-KHZ FLT RELAY, 25-KHZ WIDEBAND) 3. TYPE OF SERVICE (DAMA, ANDVT SECURE VOICE, TTY, ETC.) 4. REASON FOR TEST (ASW ARCHITECTURE TESTING) 5. SERVICE DATES (START/STOP IN ZULU TIMES) 6. TERMINAL TYPE (AN/WSC-3, AN/WSC-5, AN/PSC-3, ETC.) 7. NECOS (NAME/LOCATION OF NET CONTROL STATION) 8. POC (24 HOURS A DAY) 9. ADDITIONAL INFORMATION MAY BE PROVIDED AS DESIRED// (DOWNGRADING INSTRUCTIONS IF REQUIRED)// BT (4) Non-U.S. Navy, non-Department of Defense (DOD), and non-U.S. Requirements. This includes all requirements generated by non-U.S. Navy activities for use of U.S. Navy UHF SATCOM resources. In most cases, these requirements will be stated in advance and will be the subject of a formal Memorandum of Agreement (MOA) or other suitable agreement. Circumstances under which U.S. Navy UHF SATCOM resources will be made available, description of services to be provided, and procedures for requesting the scheduling of such services will be included in each agreement. Non-U.S. Navy activities, authorized by CNO to use U.S. Navy UHF satellites, will identify requirements for specific services a minimum of 15 days in advance. Requests for services not covered by pre-negotiated agreements, including services beyond those specifically identified in existing agreements, will be submitted to COMNAVCOMTELCOM, information to CNO, the appropriate FLTCINC and NCTAMS, and other addressees as necessary. Such requests will identify the services required, priority, terminals to be used, cryptographic equipment involved and the inclusive dates and times of operation; and will provide sufficient information regarding the need to facilitate validation and approval by CNO or higher authority. The following is an example of a message used to request UHF SATCOM access. PRECEDENCE/DATE TIME GROUP FM ORIGINATOR TO COMNAVCOMTELCOM WASHINGTON DC//N32//

4-3

ORIGINAL

NTP 2 SECTION 2(E) INFO JOINT STAFF WASHINGTON DC//J6Z// CNO WASHINGTON DC//943// APPROPRIATE CINC// // APPROPRIATE FLTCINC// // APPROPRIATE NCTAMS// // OTHER ADDEES AS APPROPRIATE// // BT CLASSIFICATION//N02050// MSGID/GENADMIN/ORIGINATOR/ / // SUBJ/UHF SATCOM ACCESS REQUEST// REF/A/RMG/ORIGINATOR/DATE TIME GROUP// AMPN/ INFO ABOUT REF A// POC/ / / / / // RMKS/1. IAW REF A REQUEST UHF SATCOM ACCESS AS FOLS: A. SATELLITE DESIRED (FLTSAT-1, LEASAT-1) TRANSPONDER (25-KHZ FLT RELAY, 25-KHZ WIDEBAND) USAGE (2400 BPS SECVOX, TTY) B. PRIORITY (3D) C. TERMINAL TO BE USED (AN/WSC-3, AN/WSC-5, AN/PSC-3, ETC.) D. CRYPTOGRAPHIC EQUIPMENT (KG-84A, KG-35) KEYMAT (USKAK 2122) E. SERVICE DATES (01 APR 92 THRU 30 APR 92) F. TIME OF OPERATIONS (1200Z-2400Z DAILY) G. REMARKS: (ADDITIONAL INFORMATION AS REQUIRED)// (DOWNGRADING INSTRUCTIONS IF REQUIRED)// BT (5) Non-U.S. Navy Managed UHF SATCOM Resources. U.S. Navy and U.S. Marine Corps validated requirements for short term use of non-U.S. Navy managed UHF SATCOM i.e., Air Force Satellite Communications (AFSATCOM) resources in support of fleet operations and exercises will be coordinated through COMNAVCOMTELCOM. All U.S. Navy and U.S. Marine Corps validated requirements for non-U.S. Navy managed UHF SATCOM resources in support of CJCS and unified CINC directed exercises will be coordinated through the appropriate CINC. b. Request for FLTSATCOM Access. All commands desiring UHF SATCOM services to support current or future operations will submit their requirements in message format. The following is a sample message (action addressee will be the appropriate NCTAMS; the information addressees will be the chain of command). PRECEDENCE/DATE TIME GROUP FM ORIGINATOR TO APPROPRIATE NCTAMS//

4-4

//

ORIGINAL

NTP 2 SECTION 2(E) INFO JOINT STAFF WASHINGTON DC//J6Z// CNO WASHINGTON DC//943// COMNAVCOMTELCOM WASHINGTON DC//N32// APPROPRIATE FLTCINC// // OTHER ADDEES AS APPROPRIATE// // BT CLASSIFICATION //N02050// MSGID/GENADMIN/ORIGINATOR/ / // SUBJ/UHF SATCOM ACCESS REQUEST// REF/A/DOC/CNCTC/DATE// AMPN/ NTP 2 SEC II // POC/ / / / / // RMKS/1. IAW REF A, REQUEST UHF SATCOM ACCESS AS FOLS. A. SATELLITE DESIRED (FLTSAT-1, LEASAT-1) B. TRANSPONDER (25-KHZ FLT RELAY, 25-KHZ WIDEBAND) C. TYPE OF SERVICE (2400 BPS SECURE VOICE, TTY) D. REASON FOR SERVICE (EXERCISE, NCA/CINC/VIP TRAVEL) E. SERVICE DATES (START/STOP IN ZULU TIME) F. TERMINAL TYPE (AN/WSC-3, AN/WSC-5, AN/PSC-3, ETC.) G. NECOS (NAME/LOCATION OF NET CONTROL STATION) H. ISDB (formerly URDB) NR I. POC (24 HOURS A DAY) ADDITIONAL INFORMATION MAY BE PROVIDED AS DESIRED// (DOWNGRADING INSTRUCTIONS IF REQUIRED)// BT (1) The NCTAMS will allocate available resources to satisfy operational requirements of area subscribers as directed by the FLTCINC and COMNAVCOMTELCOM to satisfy validated test and nonU.S. Navy requirements. COMNAVCOMTELCOM will be an information addressee on all messages concerning UHF SATCOM access requirements. (2) Access requirements resulting from participation in exercises or operations as directed by higher authority shall be coordinated in accordance with the operational tasking messages and plan in effect. Individual unit access requests in these circumstances are not required and are the responsibility of the Officer in Tactical Command to coordinate. c. Equatorial Satellite Antenna Pointing Guide. Figure 41, in conjunction with the following narrative, illustrates use of the Equatorial Satellite Antenna Pointing Guide to determine azimuth (AZ) and elevation (EL) angles to a satellite from a fixed location.

4-5

ORIGINAL

NTP 2 SECTION 2(E)

ORIGINAL

Figure 4-1 Equatorial Satellite Antenna Pointing Guide (Example: FLTSAT 8 23o West)

4-6

NTP 2 SECTION 2(E) The example illustrated in figure 4-1 assumes Fleet Satellite (FLTSAT) 8 (23° W) is the desired satellite and the ship attempting to access the satellite is located at 30° north and 70° west. AZ/EL values of 115° and 30° respectively are determined in the example. (1) The antenna pointing guide is a clear plastic overlay (spider web) which slides directly across a stationary map to indicate AZ and EL angles in degrees to the satellite. The values obtained are useful to the operator in setting up the antenna control unit of the AN/WSC-3(V) SATCOM radio set. (2) To use the guide, center the spider web directly over the desired satellite position on the stationary guide. Next mark the current position (latitude and longitude) of the ship on the spider web with a grease pencil. (3) Determine the approximate azimuth angle from the ship to the satellite by locating the closest dotted line radiating outward from the center of the spider web (the position of the satellite), in relation to the grease dot indicating the ship's position. This dotted line represents degrees of azimuth as printed at the outward end of the dotted line. Some approximation will be required for ship positions not falling directly on the dotted line. (4) Determine degrees of elevation by locating the solid concentric line closest to the ship's marked position. Again, approximation will be required for positions not falling directly on the solid elevation line. Degrees of elevation are indicated on each concentric line. (5) Operators can obtain an equatorial satellite antenna pointing guide by ordering NSN 0967-LP-467-9020.

403.

PRIORITY STRUCTURE

a. The U.S. Navy's concept of UHF SATCOM access is to provide a means to satisfy the most critical communications information exchange requirements. This prioritization concept avoids the use of SATCOM resources to support requirements which can be satisfied by other communications media and avoids the allocation of SATCOM channels for shore-to-shore or dedicated use, except under specific circumstances. b. UHF SATCOM priority values are shown in table 4-1 in accordance with CJCS Memorandum of Policy (MOP) 37.

4-7

ORIGINAL

NTP 2 SECTION 2(E) PRIORITY Priority I

USER CATEGORY STRATEGIC ORDER (Essential to National Survival) A. B.

C. D. Priority II B. C. D. E. F. G. H. Priority III

B. C. D.

E. F.

G. Priority IV

Priority V

VIP SUPPORT A. B.

C.

Priority VI

Department of State Diplomatic Negotiations CJCS CINC JTF/CTF Component Support (e.g., theater forces) Tactical Warning (Intelligence) CJCS-sponsored and other selected exercises Counternarcotics operations ESSENTIAL SUPPORT

A.

USER CATEGORY

System Control/Orderwire NCA - Presidential Support - Secretary of Defense Support Strategic Warning/Intelligence SIOP requirements WARFIGHTING REQUIREMENTS

A.

PRIORITY

RDT&E A.

Priority VII

Other intelligence (e.g., technical, economic) Weather Logistics MIJI support (for efforts supporting a specific user problem, effort will have priority of user being affected) Diplomatic post support Minimum circuits for TT&C from space vehicles and primary circuits manned space flights Other Service support

Service Secretaries Chiefs of the Services and commanders of unified and specified commands Other

DOD test and demonstration

MISCELLANEOUS A.

B. C. D.

DOD support to Law Enforcement Agencies Non-DOD support Non-U.S. support Other

TRAINING

User Priority Values Table 4-1

4-8

ORIGINAL

NTP 2 SECTION 2(E) 404.

POWER CONTROL

a. Control of power radiated by users is an important factor in the operation of FLTSATCOM. In FLTSAT, Leased Satellite (LEASAT), and GAPFILLER wideband channel operations, multiple users share available transponder power. Users must strictly adhere to authorized power levels since any user can, by exceeding the assigned power level, completely disrupt services provided to other users. To maintain an adequate degree of power discipline when using the wideband channel of the FLTSATCOM satellites, all UHF SATCOM transmitters must be power calibrated: (1)

When initially accessing the satellite,

(2)

Immediately following terminal maintenance,

(3)

Upon

getting

underway

after

extended

inport

periods, (4) Anytime a change in terminal characteristics is detected and suspected, or (5) maintenance.

At least once per year in accordance with planned

b. Power sharing is not a factor in FLTSAT, LEASAT, or UHF Follow-on (UFO) narrowband channel operations dedicated to specific uses (i.e., Common User Digital Information Exchange Subsystem, demand assigned Multiple access). These services are provided via individual 25-kHz channels which have independent transponders. Only one user can access a given channel at one time. The only potential power problem in this multiple access environment is the use of insufficient power. c. Power calibration services will be coordinated by the NCTAMS for fleet units in their respective communication areas. Units may request a power calibration by routine message to the respective NCTAMS. The request should indicate a primary and alternate date, and the number of AN/WSC-3(V)'s to be calibrated. In emergency situations, power calibrations may be arranged by contacting the appropriate NCTAMS via primary ship-to-shore. (1) Power calibration is accomplished by means of the Interim FLTSATCOM Spectrum Monitor (IFSM) maintained at each of the NCTAMS. The IFSM can also be used for frequency spectrum scanning or for intermodulation and can be operated in either a manual entry or reduced capability mode. Standard operating procedures maintained at the NCTAMS assist operators in performing power calibration. (2) Prior to acting on a power calibration request, the NCTAMS operator will verify the operational status of the IFSM and

4-9

ORIGINAL

NTP 2 SECTION 2(E) program it accordingly. Using the UHF SATCOM AN/WSC-5(V), the operator will establish a power reference for use during the actual calibration. With the reference established, the requesting unit is then directed to configure SATCOM equipment for a 75 baud circuit with a power output of 21 dBW. The satellite, frequency plan, and channel to be used during the power calibration will also be relayed by the NCTAMS operator. (3)

The NCTAMS operator will then program the IFSM as

follows: (a) Mode of operation intermodulation, or power calibration),

(i.e.,

spectrum

scan,

(b)

Select system (i.e., Atlantic, Pacific),

(c)

Select satellite (i.e., FLTSAT, LEASAT,

(d)

Select frequency plan (i.e., W=LEASAT LANT),

or UFO),

(e) Select satellite channel for reference (e.g., 1,2, or 3), and (f) Select satellite channel for power calibration (e.g., 1,2, or 3). (4) Once all operating parameters are entered into the IFSM and verified, power calibration operations are initiated. All information relative to the operation appears on the IFSM screen. The NCTAMS operator will advise the requesting unit of required power adjustments until the calibration is complete. (5) At the scheduled time, the requesting unit establishes a secure link with the NCTAMS, using an effective isotropic radiated power of 8 dBW. After establishing communications, shipboard personnel verify the correct azimuth and elevation of shipboard antenna systems; when the antenna has been properly oriented, the power calibration routine proceeds as outlined in the appropriate planned maintenance system maintenance requirement card. (6) Upon completion, the NCTAMS will send a routine message to the requesting unit confirming the power calibration completion date and any problem encountered.

405.

RADIO FREQUENCY INTERFERENCE (RFI)

a. Incidents of meaconing, intrusion, jamming and interference (MIJI) to U.S. military electromagnetic equipment or systems are reported by MIJI reports. However, the Joint Staff terminated the DOD MIJI reporting system under management control

4-10

ORIGINAL

NTP 2 SECTION 2(E) of the Joint Electronic Warfare Center (JEWC) effective 3 April 1992. The entire MIJI program is currently being reevaluated by the Services to determine what is required. Until further guidance is promulgated, delete JEWC as addressee on all MIJI reports. Submit SATCOM MIJI report as follows: PRECEDENCE/DATE TIME GROUP FM ORIGINATOR TO COMNAVSPACECOM DAHLGREN VA//NAVSPOC/N3// HQ USSPACECOM CHEYENNE MOUNTAIN AFB CO//SPADOC/C3SOT// INFO COMNAVCOMTELCOM WASHINGTON DC//N3/N32// NAVTECHINTCEN WASHINGTON DC//DA44// The report may also include a request for RFI geolocation support (Lifeline). Additionally, send all SATCOM MIJI reports by immediate precedence to ensure appropriate Lifeline or geolocation of RFI (previously known as GOFR) action is taken after normal working hours and Space Defense Operations Center (SPADOC) is advised of SATCOM RFI incidents in a timely manner. b. The location of jamming and interference sources affecting naval/joint UHF SATCOM is accomplished by a system referred to as Lifeline. Located at COMNAVSPACECOM Dahlgren, VA, this real-time operational system employs various RFI geolocation techniques in determining RFI sources adversely affecting satellite communications. (1) The Lifeline system makes use of time difference of arrival (TDOA), frequency difference of arrival (FDOA), combined TDOA/FDOA, and single satellite doppler techniques in locating sources of RFI affecting the Atlantic (LANT) and Continental United States (CONUS) FLTSATCOM (FLTSAT's and LEASAT's) communications payloads. (2)

Data accompanying the request should include the

following. (a) Satellite plain language name, ID number, and channel (table 4-2 contains a listing of satellite identification data).

4-11

ORIGINAL

NTP 2 SECTION 2(E) SATELLITE

ID NUMBER

FLTSATCOM-1

10669

FLTSATCOM-4

12046

FLTSATCOM-7

17181

FLTSATCOM-8

20253

LEASAT-1

15384

LEASAT-2

15236

LEASAT-3

15643

LEASAT-5

20410

GAPSAT-1

8882

GAPSAT-3

9478

Satellite Identification Data Table 4-2 (b)

Frequency affected.

(c)

Bandwidth affected.

(d)

Signal strength.

(e) Modulation type (i.e., modulated, unmodulated). (f) Signal characteristics (i.e., intermittent, constant, steady carrier). (g) Operational impact, including circuit affected and restoral priority. c. The NCTAMS or Naval Communications Station (NAVCOMMSTA) experiencing MIJI is responsible for data collection, compilation and forwarding of MIJI reports. In the case of satellite channels assigned to fleet units, the appropriate NCTAMS shall compile/coordinate the data and submit the MIJI report. This recognizes that in many cases the NCTAMS is not the end user of the channel, but it also reduces the burden on fleet units who are not in the best position to identify interfering signal parameters. d. Coordination between the reporting unit and the serving NCTAMS will aid in determining the need to refer the incident for geolocation efforts. COMNAVCOMTELCOM, acting on the operational status reporting of the NCTAMS, will coordinate with Commander, Naval Space Command (COMNAVSPACECOM) if geolocation efforts are warranted. RFI support service requests are acted upon by the

4-12

ORIGINAL

NTP 2 SECTION 2(E) Naval Space Operations Center (NAVSPOC), a separate code within the COMNAVSPACECOM organization. A NAVSPOC watch officer maintains the operational status of all space systems providing service or products to the fleet and performs other monitoring, interface, configuration, and communications functions. However, if the affected satellite/channel is outside the COMNAVSPACECOM field of view, coordination with Headquarters, US Space Command (HQ USSPACECOM)/SPADOC will be necessary in order to bring other assets to bear on the geolocation effort. e. The area NCTAMS should be consulted when a NAVCOMMSTA, Naval Computer and Telecommunications Station (NAVCOMTELSTA) or other COMNAVCOMTELCOM activity is experiencing MIJI. Evidence has pointed toward friendly forces as the source of MIJI in some cases. It is incumbent upon the NCTAMS to establish specific guidance in the area Fleet Telecommunication Procedure concerning MIJI reporting. After a maximum of one hour, the affected circuit should be restored via alternate circuitry. This is a judgment call and depends on circuit priority, available assets, etc. After two hours of interference, a MIJI report must be sent even if the circuit has been restored via other means.

406.

CRISIS AND CONTINGENCY COMMUNICATIONS

a. Experience has demonstrated that even a limited UHF SATCOM capability can significantly improve the flow of command and control information between a FLTCINC and the forces assigned. Existing and planned U.S. Navy UHF SATCOM resources, the various automated information exchange subsystems, expanding secure voice capabilities, and automated fleet and message center operations will substantially improve the ability of the NCTS to respond to the traffic surges which normally accompany crisis situations. Nevertheless, there will be occasions when some manipulation of UHF SATCOM capabilities and services will be required to respond effectively to the demands for service generated in crisis and contingency operations. b. Naval Crisis and Contingency Requirements. The FLTCINC is the U.S. Navy focal point for the direction and support of naval forces operating at sea. OPNAVINST 5450.184 assigns the FLTCINC's authoritative direction and control of designated tactical communications functions performed by activities of COMNAVCOMTELCOM, with due consideration to system and Service-wide requirements. This authoritative direction and control includes direction to NCTAMS for operational adjustments or temporary network changes required to support contingency or emergency situations. Within this context, NCTAMS LANT is responsive to Commander in Chief, U.S. Atlantic Fleet, NCTAMS Mediterranean (MED) to Commander in Chief, U.S. Naval Forces Europe, and NCTAMS Eastern Pacific/Western Pacific (EASTPAC/WESTPAC) to Commander in Chief,

4-13

ORIGINAL

NTP 2 SECTION 2(E) U.S. Pacific Fleet. (1) There are a number of actions which may be directed by the FLTCINC's to improve command and control capabilities in a crisis situation. These actions are consistent with the authoritative direction and control assigned to each FLTCINC, and should not impact on other FLTCINC's if all satellites and NCTAMS terminals are functioning normally. (2) The coverage areas of most on-orbit satellites can provide SATCOM service to at least two FLTCINC's. Any station has the capability to divert resources from support of one FLTCINC to the support of another. In two specific cases (NCTAMS WESTPAC and MED), the basic concept of operations includes the allocation of resources in one theater to provide primary or alternate support to forces operating in another. Thus, in the strictest sense, any manipulation of UHF SATCOM resources has a system-wide implication. c. Non-U.S. Navy Requirements. The allocation of U.S. Navy UHF SATCOM resources to support non-U.S. Navy users will normally be in accordance with MOA's or other suitable agreements negotiated in advance between the department or agency concerned and CNO. (1) It can be anticipated that under certain crisis conditions, the U.S. Navy will be tasked to provide unplanned services, in accordance with CJCS MOP 37, to support requirements of the NCA, Chairman of the Joint Chiefs of Staff, unified and specified commanders, or other authorities. The support of such unforeseen requirements may require the temporary preemption and reallocation of UHF satellite resources. To minimize the impact on U.S. Navy subscribers, the precise manner in which non-U.S. Navy requirements are to be satisfied will be determined by CNO, in close coordination with COMNAVCOMTELCOM and appropriate FLTCINC's, and the Joint Communications Satellite Center as required. (2) The U.S. Navy and U.S. Air Force have developed procedures for sharing UHF SATCOM. MOA's address use of existing systems for which either the U.S. Navy (FLTSATCOM) or the U.S. Air Force (AFSATCOM) is the system manager. COMNAVCOM-TELCOM and the U.S. Air Force Space Command have been assigned responsibility for coordinating services.

4-14

ORIGINAL

NTP 2 SECTION 2(E) CHAPTER 5 ADMINISTRATIVE PROCEDURES 501.

GENERAL

The ultra high frequency (UHF) satellite communications (SATCOM) system provides reliable, long haul communications networks to a variety of platforms ranging from single channel equipment to complex multiple subsystems. Administrative procedures are necessary for control of satellite access, to ensure that the systems are meeting authorized requirements during peacetime and contingency operations.

502.

INTEGRATED MILSATCOM (MILITARY COMMUNICATIONS) MANAGEMENT INFORMATION SYSTEM (IMMIS)

SATELLITE

This system (formerly User Requirements Database (URDB)) provides the means to validate communications requirements leading to utilization of Fleet Satellite Communications (FLTSATCOM). Validation of a requirement and the subsequent granting of an Integrated SATCOM (Satellite Communications) Database (ISDB) number does not automatically ensure actual access to the FLTSATCOM. Implementation of UHF access is authorized by the Fleet Commander in Chief (FLTCINC) for his area following assignment of resources by the Chief of Naval Operations (CNO). ISDB submissions are normally required prior to access and serve as a basis for Chairman of the Joint Chiefs of Staff (CJCS) validation of approved requirements. ISDB submissions for the naval Services can originate from several sources: CNO, the Commandant of the Marine Corps (CMC), a FLTCINC (through the CNO), a Fleet Marine Forces Commander (through CMC), or a unified/specified commander in chief (CINC) (for naval forces supporting joint requirements). The Joint Staff/Joint Communications Satellite Center (JCSC), acting for the Chairman of the Joint Chiefs of Staff manages the ISDB process and develops policy and guidance that is published in CJCS Memorandum of Policy (MOP) 37. The Director, Defense Information Systems Agency (DISA) administers the ISDB for the Chairman of the Joint Chiefs of Staff. Normally, the Joint MILSATCOM Panel (consisting of Service, JCSC, and DISA representatives) meets at least once a month to review ISDB submissions and to make recommendations regarding final approval or disapproval. The JCSC then initiates a joint action to validate the requirements. Validated requirements will

5-1

ORIGINAL

NTP 2 SECTION 2(E) be assigned a number and entered into the ISDB. The numbers will be provided to the originator of the request with the assigned priority. Disapproved requests with comments will be returned to the user.

503.

ISDB SUBMISSIONS

The Chairman of the Joint Chiefs of Staff, CINC's, Services, and Defense agencies are the advocates of all MILSATCOM requirements. The CINC's are the advocates for their respective area of responsibility/area of operations (AOR/AOO). Each CINC will consolidate, validate, and prioritize all requests for use of MILSATCOM systems within the AOR/AOO. The U.S. Navy and U.S. Marine Corps will validate and submit, through appropriate channels, service requirements for system development and testing, training, organizing, and equipping forces. CINC's and Services will carefully review each requirement and the associated performance characteristics and attributes identified to ensure each requirement: -

Is valid.

-

Has a clear operational concept.

Identifies all operation plans, operation orders, communications plans, and implementation directives supported. -

Identifies missions supported.

-

Provides a mission impact if not satisfied.

Naval requirements that are ongoing/continuing do not require an ISDB submission each time forces deploy. Access under previously approved requirements is achieved as described in chapter 4 of this Naval Telecommunications Procedure. a. Urgent ISDB Requirements. Urgent ISDB requirements are submitted by the FLTCINC's or a unified and specified commander directly to the Joint Staff/JCSC with information copies to the respective chain of command and the Joint MILSATCOM Panel Administrator (JMPA). The submission must contain adequate justification for the urgency. The Joint Staff will initiate validation action as appropriate. b.

ISDB Guidelines.

5-2

Guidelines for completing

ORIGINAL

NTP 2 SECTION 2(E) ISDB submissions can be found in DISA Integrated MILSATCOM Management System, User Requirements Database (URDB) User Requirements Form, dated August 9, 1991.

504.

REPORTING REQUIREMENTS

a. The reporting procedures established for direction and control of tactical communications for shore, fleet, and research and development activities are based upon Joint Reporting System requirements in Naval Warfare Publication (NWP) 10-1-13 (SUPP 1). This publication contains modifications which are designed to highlight that information required to ensure effective management, control, and use of SATCOM resources. b. Communications Spot Report (COMSPOT). COMSPOT's will be submitted by shore, fleet, and research and development activities, including non-terminated units, when local efforts to resolve communications outage are not successful or exceed 30 minutes. Ships will submit a COMSPOT to the terminating Naval Computer and Telecommunications Area Master Station (NCTAMS), information to the numbered fleet commander. Timely submission of COMSPOT reports is necessary to minimize further deterioration of communication circuits. Any changes in status, including restoration of communications, will also be reported via a COMSPOT. The following is an example of a COMSPOT report. PRECEDENCE/DATE TIME GROUP FM (ORIGINATOR) TO (TERMINATING STATION)// // INFO (CHAIN OF COMMAND)// // BT CLASSIFICATION //N02308// (CLASSIFY ONLY IF CONTENTS WARRANT) MSGID/GENADMIN/NAVCOMM DET NORFOLK/4A/FEB// SUBJ/COMSPOT// REF/A/RMG/ORIGINATOR/DATE TIME GROUP// AMPN/(FREE TEXT TO AMPLIFY REFERENCE)// COMEV/(EVENT)/(START TIME)/(END TIME)/(SYSTEM)// RMKS/1. SHIPS POSITION. 2. DESCRIPTION OF PROBLEM; STATE CORRECTIVE ACTION TAKEN BY UNIT. 3. RECOMMENDED SOLUTION// DOWNGRADING INSTRUCTIONS IF REQUIRED// BT

505.

OPERATIONAL TRAINING

5-3

ORIGINAL

NTP 2 SECTION 2(E) a. Courses. Formal training courses for U.S. Navy UHF SATCOM systems and subsystems are primarily conducted at Fleet Training Center (FLETRACEN), Norfolk, VA and Advanced Electronics School, Service School Command (SERVSCOLCOM) Annex, Naval Station, San Diego, CA. The training courses available are listed below sequentially by course number. The list also includes courses for systems which are not specifically part of U.S. Navy UHF SATCOM but use UHF SATCOM access. (1) AN/WSC-3(V) UHF SATCOM Operator and Maintenance, course number A-101-0138. The course trains personnel in the operation and maintenance of the generic AN/WSC-3(V) communications set and the associated AN/SRA-33 and OA-9123/SRC antenna couplers and the OE-82B/C antenna. The course is conducted at FLETRACEN, Norfolk, VA and SERVSCOLCOM Annex, Naval Station, San Diego, CA. (2) AN/USQ-64(V)2 Common User Digital Information Exchange Subsystem (CUDIXS), course number A-101-0082. The course trains personnel in the operation and maintenance of the AN/USQ64(V)2, CUDIXS shore configuration which includes the AN/WSC-5(V), the interim FLTSATCOM spectrum monitor, and the UHF demand assigned Multiple access (DAMA) multiplexer set. The course is conducted at SERVSCOLCOM Annex, Naval Station, San Diego, CA. (3) Officer in Tactical Command and Tactical Data Information Exchange Subsystem-A (OTCIXS/TADIXS-A) Maintenance, course number A-101-0221. The course trains personnel in the skills and knowledge to operate and maintain the OTCIXS and TADIXS communications system which includes the ON-143(V)6 and AN/UGC136BX. The course is conducted at FLETRACEN, Norfolk, VA and SERVSCOLCOM Annex, San Diego, CA. (4) Submarine Radioman Receive OTCIXS and TADIXS-A Operation and Maintenance Training, course number A-101-0223. The course trains personnel in operations and maintenance of the OTCIXS and TADIXS-A equipment which includes the ON-143(V)6 and AN/UGC136CX. The course is conducted at Submarine School, Groton, CT. (5) Tactical Intelligence (TACINTEL) Operator, course number A-231-0052. The course trains personnel to operate the AN/USQ-64 TACINTEL subsystem including the following associated shipboard communications equipment and system: AN/URA-17, R-1051B, KW-46, KG-84A, and system OUTBOARD. The course is conducted at Naval Technical Training Center (NAVTECHTRACEN), Pensacola, FL. (6) VHF/UHF/SHF Theory, course number A-232-0070. The course trains personnel in the basic knowledge to effectively operate in the very high frequency (VHF)/UHF/super high frequency (SHF) spectrums; included are overviews of modulation/demodulation, radiowave propagation, multiplexing schemes, and satellite

5-4

ORIGINAL

NTP 2 SECTION 2(E) communications. Pensacola, FL.

The

course

is

conducted

at

NAVTECHTRACEN,

(7) Submarine Satellite Information Exchange Subsystem (SSIXS II) Shore Communications Operator, course number A-260-0031. The course trains personnel in the operation of the SSIXS II communications center equipment as supervised by a qualified watch supervisor. The course is conducted at FLETRACEN, Norfolk, VA. (8) AN/SYQ-7(V)2 Naval Modular Automated Communications System (NAVMACS) (V)2 Operator, course number A-260-0033. The course trains personnel in the operating procedures for the NAVMACS (V)2. The course is conducted at FLETRACEN, Norfolk, VA and SERVSCOLCOM Annex, San Diego, CA.

5-5

ORIGINAL

NTP 2 SECTION 2(E) (9) AN/SYQ-7(V)3 Naval Modular Automated Communications System (NAVMACS) (V)3 Operation, course number A-260-0037. The course trains personnel to operate, with limited supervision, the NAVMACS (V)3 aboard naval ships. The course is conducted at FLETRACEN, Norfolk, VA and SERVSCOLCOM Annex, San Diego, CA. (10) AN/SYQ-7(V)5 NAVMACS (V)5 Database Management, course number A-260-0047. The course trains personnel to construct and maintain a database for use with the NAVMACS (V)5. The course is conducted at FLETRACEN, Norfolk, VA and SERVSCOLCOM Annex, San Diego, CA. (11) AN/SYQ-7(V)5 Naval Modular Automated Communications System, course number A-260-0065. The course trains personnel to effectively operate and manipulate AN/SYQ-7(V)5 NAVMACS with limited supervision. The course is conducted at FLETRACEN, Norfolk, VA and SERVSCOLCOM Annex, San Diego, CA. (12) Officer in Tactical Command/Tactical Data Information Exchange Subsystems-A (OTCIXS/TADIXS-A) Operator Course number A-260-0050. The course trains Combat Information Center Watch Officers and enlisted personnel to operate the AN/USQ-64(V)7 OTCIXS and the AN/USQ-64(V)8 TADIXS-A communications systems. The course is conducted at FLETRACEN, Norfolk, VA and SERVSCOLCOM Annex, San Diego, CA. (13) Fleet Imagery Support Terminal (FIST) Operator, course number J-243-1950. The course trains personnel to operate the FIST system under simulated operational conditions. The course is conducted at the U.S. Navy and Marine Corps Intelligence Training Center, Dam Neck, Virginia Beach, VA. (14) TADIXS-B and Tactical Receive Equipment (TRE) System Operator and Maintenance, course number A-101-0230. The course trains personnel in the operation and maintenance of the TADIXS-B and TRE system. The course is conducted at Naval Submarine School, Groton, CT. Maintenance course A-101-0270 is also available at Advanced Electronics School, SERVSCOLCOM Annex, San Diego, CA and FLETRACEN, Norfolk, VA. b. Personnel Qualification Standards (PQS). The applicable PQS for UHF SATCOM for each class of ship should be included in the unique PQS for radio communications of the various classes. Table 5-1 lists the PQS title with NAVEDTRA number and stock number of the LHA 1 and LCC 19 as examples of unique radio communications PQS. The applicable PQS for the AN/WSC-3(V) and the AN/WSC-5(V) have been incorporated in several UHF SATCOM system PQS books.

5-6

ORIGINAL

NTP 2 SECTION 2(E) PQS

NAVEDTRA NO.

STOCK NO.

LHA 1 Class Radio Communications (UNIQUE)

43315-5B

0501-LP-223-1520

LCC 19 Class Radio Communications (UNIQUE)

43317-5A

0501-LP-223-1703

Radio Communications (COMMON)

43355-5A

0501-LP-233-6535

Communications System Technical Control Ashore

43465

0501-LP-224-3250

PQS for UHF SATCOM Table 5-1

5-7

ORIGINAL

ANNEX A TO NTP 2 SECTION 2(E) ANNEX A FLEET SATELLITE BROADCAST 1.

INTRODUCTION

The purpose of this annex is to provide information related to the operation of the fleet satellite broadcast.

2. SUPER HIGH FREQUENCY BROADCAST SUBSYSTEM

(SHF)

FLEET

SATELLITE

The SHF Fleet Satellite Broadcast Subsystem provides the capability to transmit fleet broadcast message traffic in a jamming environment through the use of a jam-resistant, direct sequence spread spectrum SHF uplink signal transmitted via the AN/FSC-79 satellite communications (SATCOM) terminal. The fleet satellite broadcast comprises 15 channels of encrypted message traffic at an input data rate of 75 bits per second (bps) per channel. These channels are time division multiplexed and transmitted as the SHF uplink signal in a one-way radio frequency (RF) transmission at 1200 bps. The space based segment of the subsystem consists of the Fleet Satellite Communications (FLTSATCOM) constellation which is capable of receiving the uplinked signal and accomplishing onboard translation to ultra high frequency (UHF) before broadcast to subscribers. The Fleet Satellite Broadcast Subsystem is illustrated in figure A1.

3.

MESSAGE TRAFFIC INPUT

a. Fleet satellite broadcast message traffic is processed, queued, and channelized prior to transmission by two processor-controlled switching systems. For general service (GENSER) message traffic, the Naval Computer Processing and Routing System (NAVCOMPARS) receives message traffic from automated sources, overthe-counter facilities, dedicated subscriber ports, tactical circuits, and through interconnects with other message processing and control systems. NAVCOMPARS software automates broadcast functions and provides for the automatic recognition of individual message addressees and routing of those messages to the appropriate broadcast channel for transmission. STREAMLINER functions similarly in processing special intelligence (SI) message traffic received from automated or dedicated subscriber sources and the Ocean

A-1

ORIGINAL

ANNEX A TO NTP 2 SECTION 2(E) Surveillance Information System (OSIS). Fleet satellite broadcast message traffic is segregated into separate channels operating at 75 bps. Exact channelization may vary by ocean area. The appropriate Naval Computer and Telecommunications Area Master Station (NCTAMS) Communications Information Bulletins should be reviewed for the area in which operations are conducted. Additionally, the fleet satellite broadcast transmission makes use of a sixteenth channel for frame synchronization.

A-2

ORIGINAL

ORIGINAL

ANNEX A TO NTP 2 SECTION 2(E)

Figure A-1 Fleet Satellite Broadcast Subsystem

A-3

ANNEX A TO NTP 2 SECTION 2(E) b. Once channelized, message traffic is encrypted and multiplexed. Through time division multiplexing, the broadcast package becomes a 1200 bps data stream which is normally passed to the SHF or to the UHF satellite transmission system.

4.

RF TRANSMISSION

a. Fleet Satellites (FLTSAT's) and Leased Satellites (LEASAT's) make use of two RF channels for fleet satellite broadcast message support. The first channel is configured for SHF operation and is used as the primary mode for fleet broadcast transmission. Only the uplink portion of the broadcast signal is SHF. The downlink portion of the broadcast is UHF after translation within the satellite. The second RF channel is intended as a backup for the primary SHF broadcast signal. This channel is configured for uplink and downlink operation in the UHF band. The second RF channel may be used as required by the Fleet Commander in Chief (FLTCINC) as a means to provide a tailored broadcast in support of mission requirements. b. When transmitting via channel 1 of the FLTSAT and LEASAT, the time division multiplexer (TDM) output will be patched to the AN/FSC-79 SATCOM terminal. Transmitting via channel 2 requires the multiplexer output be patched to the AN/WSC-5(V) UHF transceiver. c. The availability of two satellite channels and the option of using several different RF modulation techniques in uplinking fleet satellite broadcast message traffic make possible seven different transmission modes. d. In modes 1-6, the SHF transmissions are made by the AN/FSC-79 SATCOM terminal. Mode 7 permits UHF uplink and downlink operation using the AN/WSC-5(V) transceiver. e. Fleet satellite broadcast transmissions are controlled by subsystem components. (1) Message traffic control, in terms of channel assignment, handling, precedence levels, and accountability, is accomplished within the software of NAVCOMPARS and STREAMLINER processors. (2) The operational modes listed in table A-1 provide control of fleet satellite broadcast RF transmission. Mode 1 is the standard operating mode.

A-4

ORIGINAL

ANNEX A TO NTP 2 SECTION 2(E) Changing to satellite.

modes

2-6

requires

MODE

a

command

to

SHF

the

UHF Channel 1

Channel 2

1.

Spread Spectrum (Primary Mode)

Uplink

Downlink

N/A

2.

Spread Spectrum

Uplink

N/A

Downlink

3.

Narrowband (OM-51A modem)

Uplink

Downlink

N/A

4.

Narrowband (OM-51A modem)

Uplink

N/A

Downlink

5.

Narrowband (OM-43A modem)

Uplink

Downlink

N/A

6.

Narrowband (OM-51A modem)

Uplink

N/A

Downlink

7.

UHF

N/A

N/A

Uplink and Downlink*

*

Via Channel 3 on LEASAT Fleet Satellite Broadcast Transmission Modes Table A-1

5.

SUBSCRIBER RECEPTION

Subscribers receive the fleet satellite broadcast UHF downlink signal with either an AN/SSR-1 or AN/SSR-1A receiver. The receiver demodulates and demultiplexes the signal before decryption and ultimate interface with the Naval Modular Automated Communications System (NAVMACS). Up to four channels of traffic can be processed for message screening and printing. SI channels are similarly screened by the tactical intelligence (TACINTEL) processor. Subscriber terminals that do not have NAVMACS (e.g., patrol hydrofoil missiles (PHM) and mine sweeper ocean (MSO)) or TACINTEL processors guard selected fleet broadcast channels and output data to teletypewriters. Table A-2 contains the broadcast equipment configuration. Message Processing Ashore

• NAVCOMPARS (GENSER and emergency action message (EAM) traffic) • STREAMLINER (SI message traffic)

Message Processing Afloat

• NCTAMS (GENSER and EAM traffic) • TACINTEL (SI traffic)

A-5

ORIGINAL

ANNEX A TO NTP 2 SECTION 2(E) Message Encryption/Decryption

• KWT-46 (shore based transmitter) • KWR-46 (subscriber receiver unit)

Multiplexing

• TD-1150/USC TM • TD-1389(V)4/TSC LRM

Shore Based RF Terminal

• • • •

Subscriber RF Terminal

• AN/SRR-1 or AN/SRR-1A receiver

OM-51A/FR modem OM-43A/USC digital data modem AN/FSC-79 SATCOM terminal (SHF) AN/WSC-5(V) transceiver (UHF)

NOTE: The OM-43A/USC modem can be used with the AN/FSC-79 terminal, but is normally used with the AN/WSC-5(V).

Fleet Satellite Broadcast Subsystem Equipment Configuration Table A-2 (continued)

6.

FLEET SATELLITE BROADCAST INSTALLATIONS

Table A-3 provides the five locations capable of broadcast transmission and control. All five locations have the capability to transmit via the AN/FSC-79 SATCOM terminal or the AN/WSC-5(V) transceiver. Table A-4 lists the broadcast control station (BCS) and alternate broadcast control station (ABCS) assignments. INSTALLATION/ BROADCAST DESIGNATOR

LOCATION

EQUIPMENT

NCTAMS LANT (LMUL)

Norfolk, VA Northwest, Chesapeake, VA

AN/WSC-5(V) AN/FSC-79

NCTAMS MED (MMUL)

Bagnoli, Italy Lago di Patria, Italy

AN/WSC-5(V) AN/FSC-79

NCTAMS WESTPAC (GMUL)

Finegayan, Guam

AN/WSC-5(V) AN/FSC-79

NCTAMS EASTPAC (HMUL)

Wahiawa, HI

AN/WSC-5(V) AN/FSC-79

NAVCOMMSTA Stockton

Stockton, CA

AN/WSC-5(V) AN/FSC-79

Fleet Satellite Broadcast RF Terminal Installations Table A-3 BROADCAST

BCS

ABCS

LANT

NCTAMS LANT

NCTAMS MED

MED

NCTAMS MED

NCTAMS LANT

WESTPAC

NCTAMS WESTPAC

NCTAMS EASTPAC

A-6

ORIGINAL

ANNEX A TO NTP 2 SECTION 2(E) EASTPAC

7.

NCTAMS EASTPAC

NCTAMS WESTPAC

BCS/ABCS Assignments Table A-4 CURRENT OPERATIONS

a. Fleet broadcast support is provided to each major ocean area by the NCTAMS. Each is capable of originating one or more broadcasts to support area operations. Broadcast transmission is effected primarily through the AN/FSC-79 SATCOM terminal on channel one of the FLTSAT or LEASAT. Fleet satellite broadcast messages are routed by the NAVCOMPARS to the appropriate broadcast channel for transmission. Broadcast alignment can be changed in accordance with the operational requirements of the FLTCINC. In addition to the SHF satellite broadcast, each NCTAMS is capable of providing broadcast packages via UHF satellite or high frequency. b. Procedures for assuming guard for the fleet satellite broadcast are accomplished through a communications shift message. These procedures are found in Naval Telecommunications Procedure 4.

A-7

ORIGINAL

ANNEX B TO NTP 2 SECTION 2(E) ANNEX B OFFICER IN TACTICAL COMMAND INFORMATION EXCHANGE SUBSYSTEM (OTCIXS)/TACTICAL DATA INFORMATION EXCHANGE SUBSYSTEM (TADIXS) 1.

INTRODUCTION

a. OTCIXS. OTCIXS is designed to provide a twoway satellite link (half-duplex mode) to support interbattle group and intrabattle group over-the-horizon targeting (OTH-T) and command and control communications requirements. OTCIXS is capable of handling both teletypewriter (TTY) message traffic and tactical data processor (TDP) formatted data on an automatically controlled time-shared basis over the same OTCIXS satellite channel. Figure B-1 illustrates the OTCIXS network.

B-1

ORIGINAL

ANNEX B TO NTP 2 SECTION 2(E)

Figure B-1 OTCIXS Network b. Using both dedicated connectivity and satellite links TADIXS A provides integrated worldwide broadcast connectivity among the OTH-T community. Net operations consist of event-by-event and scheduled broadcasts from shore support TDP systems to afloat subscribers. Selected flag configured TADIXS A afloat subscribers have TADIXS A transmit capability. The remainder of TADIXS A afloat subscribers have a receive only capability and must respond to TADIXS A messages and queries via OTCIXS. Figure B-2 illustrates the TADIXS A network. (TADIXS B is discussed in annex C).

2.

ARCHITECTURE

a. An OTCIXS (AN/USQ-64(V)7) installation consists of an ON-143(V)6/USQ interconnecting group (IG), a cryptographic device (KG-84A for surface and KG-35/36 for subsurface), and a TTY (AN/UGC-136BX for surface and AN/UGC-136CX for subsurface). Figure B-3 illustrates a

B-2

ORIGINAL

ANNEX B TO NTP 2 SECTION 2(E)

Figure B-2 TADIXS A Network block diagram of a typical OTCIXS installation.

B-3

ORIGINAL

ANNEX B TO NTP 2 SECTION 2(E)

Figure B-3 OTCIXS Block Diagram (1) The ON-143(V)6/USQ IG provides automatic cryptographic synchronization, storing and forwarding of incoming and outgoing TTY and TDP data, and control of the satellite link access via the AN/WSC-3(V) or AN/WSC5(V) radio set. All subscribers are assigned a subscriber identification (SID) number which is manually programmed into the ON-143(V)6/USQ. (2) One ON-143(V)6/USQ in the OTCIXS net must function as the Net Control Station (NECOS). NECOS's are assigned by appropriate theater managers in accordance with fleet doctrine. The NECOS automatically sets the net mode (teletype or data), net precedence (flash or immediate), system time, and grants net access to other OTCIXS subscribers. (3) In the idle-net state, the NECOS ON143(V)6/USQ will transmit a net control block approximately every eleven seconds. Within the net cycle, there is a one-half second precedence request time slot and one general access time slot which is divided into 20 one-half second time slots. An ON-143(V)6/USQ IG

B-4

ORIGINAL

ANNEX B TO NTP 2 SECTION 2(E) which is holding traffic for the net will automatic-ally make a random selection of one of the time slots. The NECOS will grant net access to the subscriber with high precedence data or to the subscriber that selects the earliest time slot. (4) When granted net access, the subscriber ON-143(V)6/USQ IG will automatically transmit all stored messages. To ensure delivery, a subscriber may elect to transmit messages up to five times. The NECOS will recognize this request and after the first transmission will allow the subscriber to retransmit all messages based on the number of times selected by the subscriber. (5) After all transmissions have been completed, NECOS will then grant access to another subscriber. If there are no other access requests, the net will return to an idle-net state, at which time the NECOS will acknowledge all successful transmissions observed during the previous net cycle. (6) Most OTCIXS transmissions are generated from TDP's; however, the TTY can be used to send and receive OTCIXS record traffic and operational notes. The TTY is also used to monitor net activity and as an aid in troubleshooting equipment and net problems. (7) Internet (e.g., surface to subsurface) and inter-ocean exchange of data is accomplished through interim OTCIXS gateways. The gateways are located at Naval Computer and Telecommunications Area Master Station (NCTAMS) Mediterranean (MED) Naples, Italy; NCTAMS Eastern Pacific (EASTPAC) Wahiawa, HI; Naval Communications Detachment (NAVCOMM DET) Norfolk, VA; Commander, Submarine Force, U.S. Atlantic Fleet (COMSUBLANT), Commander; Submarine Force, U.S. Pacific Fleet (COMSUBPAC); and Commander, Submarine Group SEVEN (COMSUBGRU 7). A gateway consists of two interconnected ON-143(V)6/USQ IG's, each subscribing to a different OTCIXS net. Normally, the OTCIXS gateway ON-143(V)6/USQ IG acts as the NECOS. b. TADIXS A installations consist of an ON143(V)6/USQ IG and a KG-84A cryptographic device. The TADIXS A ON-143(V)6/USQ IG interfaces with a TDP and with the TD-1271B/U demand assigned Multiple access (DAMA) equipment, and subsequently, the AN/WSC-3(V) radio set (or AN/WSC-5(V) transceiver set at shore radio frequency

B-5

ORIGINAL

ANNEX B TO NTP 2 SECTION 2(E) (RF) sites). Additionally, the TADIXS A ON-143(V)6/USQ IG is connected to the OTCIXS ON-143(V)6/USQ IG. Figure B-4 illustrates a block diagram of a typical TADIXS A installation. (1) TADIXS A has not been implemented on subsurface units and is primarily a one-way shore-to-ship broadcast; however, shore subscribers exchange information to ensure TDP databases are updated as required.

Figure B-4 TADIXS A Block Diagram (2) A single TADIXS A network can accommodate up to 16 transmit-capable subscribers. One subscriber is designated the NECOS and automatically controls all net operations. (3) TADIXS A functions as a polled network. Subscribers can only transmit in response to NECOS net entry authorization. The NECOS maintains a polling list of transmit-capable subscribers. Each station is

B-6

ORIGINAL

ANNEX B TO NTP 2 SECTION 2(E) consecutively polled, and must respond with either traffic or a no-traffic reply. If a reply is not received after three consecutive polling cycles, the station is deleted from the transmit list and will not be polled again until it is recognized during a net entry cycle and added to the transmit list. (4) TADIXS A transmit-capable subscribers must also be able to transmit over OTCIXS. Interconnectivity between the TADIXS A/OTCIXS ON143(V)6/USQ IG's supports this requirement. The TADIXS A transmit guard list must be manually programmed in the ON-143(V)6. All messages transmitted from the TDP are screened against the TADIXS A transmit guard list. If all addressed SID's are contained in the transmit guard list, the message will be sent to the OTCIXS ON143(V)6/USQ IG. If an exact match is not found, the message will be transmitted over TADIXS A only. An incorrect TADIXS A transmit guard list could result in non-delivery of messages to an OTCIXS-only configured unit. (5) Afloat TADIXS A subscribers may be required to guard more than their individual SID's (e.g., Group Call, etc.) This is accomplished by adding additional SID's to the TADIXS A receive guard list in the ON-143(V)6/USQ IG. (6) Interocean exchange of data is accomplished through interim TADIXS A gateways (identical in design and function to the OTCIXS gateways) located at NCTAMS MED and NCTAMS EASTPAC, NAVCOMM DET Norfolk, Naval Communications Station (NAVCOMMSTA) Stockton, CA, and COMSUBGRU 7. The COMSUBGRU 7 gateway shifts to NCTAMS WESTPAC during Phase IV. Normally the TADIXS A gateway ON-143(V)6/USQ acts as the NECOS.

3.

RELATED DOCUMENTS

The following System Operator's Manuals describe the operating procedures for OTCIXS and TADIXS A: a. SOM(P)-6441 System Operator's Manual Volume II for the AN/USQ-64(V)7 Communication System (Surface) b. SOM(P)-6442 System Operator's Manual Volume II for the AN/USQ-64(V)7 Communication System (Subsurface)

B-7

ORIGINAL

ANNEX B TO NTP 2 SECTION 2(E) c. SOM(P)-6443 System Operator's Manual for the AN/USQ-64(V)7 Communication System (Gateway) Release 3.2 d. SOM(P)-6444 System Operator's Manual Volume II for the AN/USQ-64(V)8 Communication System (Surface) e. SOM(P)-6445 System Operator's Manual Volume II for the AN/USQ-64(V)8 Communication System (Subsurface) f. SOM(P)-6446 System Operator's Manual Volume II for the AN/USQ-64(V)8 Communication System (Gateway) g. SOM(P)-6447 System Operator's Manual Volume II for the AN/USQ-64(V)8 Communication System (Shore) h. SOM(P)-6822 Operator's Manual (OMS) for the AN/USQ-64(V)7 and (V)8 Communication System

B-8

ORIGINAL

ANNEX B TO NTP 2 SECTION 2(E) 4.

USERS

OTCIXS and TADIXS A are the satellite communications networks which provide for the exchange of tactical warfighting command and control information between TDP's and other authorized users.

5.

RESPONSIBILITIES

The Fleet Commanders in Chief (FLTCINC's) have overall responsibility for the operation and management of OTCIXS and TADIXS A in their areas of responsibility. Each FLTCINC's command center is the net manager for (KG84A) OTCIXS and the supporting submarine shore targeting terminal is the net manager for (KG-35) OTCIXS. The Commander in Chief, U.S. Atlantic Fleet Command Center serves as the worldwide SID coordinator with each FLTCINC command center serving as area SID coordinator. All OTCIXS/TADIXS A subscribers must be familiar with standing operating procedures for the assigned area of operations and actions to be taken to ensure the integrity of OTCIXS/TADIXS A nets.

B-9

ORIGINAL

ANNEX C TO NTP 2 SECTION 2(E) ANNEX C COMMON USER DIGITAL INFORMATION EXCHANGE SUBSYSTEM (CUDIXS) AND NAVAL MODULAR AUTOMATED COMMUNICATIONS SUBSYSTEM (NAVMACS) 1.

INTRODUCTION

This annex provides a description of the CUDIXS and NAVMACS, discusses its operational application, and presents information on subsystem operations.

2.

CUDIXS and NAVMACS

a. CUDIXS and NAVMACS is an automated general service (GENSER) communications processing subsystem which interfaces the automated processing features of the Naval Computer Processing and Routing System (NAVCOMPARS) ashore with subscribers afloat. CUDIXS and NAVMACS consists of processors and peripheral equipment capable of handling high volume two-way fleet message traffic and providing the necessary radio frequency (RF) link control for efficient operation of the ashore and afloat network. The subsystem provides increased message traffic throughput, traffic volume and improved link reliability by exploiting the speed and reliability of ultra high frequency (UHF) satellite communications. The CUDIXS and NAVMACS is illustrated in figure C-1. b. Two subsystem are:

major

elements

associated

with

this

(1) The CUDIXS element which consists of shore based processors and peripheral equipment, and (2) The NAVMACS element which is the CUDIXS counterpart afloat capable of receiving and processing subscriber message traffic. c. The CUDIXS element serves a network capable of supporting 60 special subscribers (subscribers having a send and receive capability), sometimes referred to as expanded CUDIXS. Normally, two CUDIXS networks operate in support of each communication area with an additional

C-1

ORIGINAL

ANNEX C TO NTP 2 SECTION 2(E) suite of equipment available for either additional requirements or as a spare. Extended CUDIXS provides the capability to extend CUDIXs connectivity to subscribers using landlines and commercial telephone networks and intermediate Naval Computer Telecommunications Area Master Stations (NCTAMS). For example, a CUDIXS network could be established between a subscriber in the Indian Ocean (IO) and the NAVCOMSTA, Stockton, CA by extending the CUDIXS network using landline connectivity to NCTAMS MED via the intermediate NCTAMS LANT in Norfolk, VA. The CUDIXS uplink to the IO satellite is then completed through the NCTAMS MED to the subscriber in the IO.

C-2

ORIGINAL

ORIGINAL

ANNEX C TO NTP 2 SECTION 2(E)

Figure C-1 CUDIXS and NAVMACS

C-3

ANNEX C TO NTP 2 SECTION 2(E) d. Shipboard NAVMACS capabilities range from processing up to four channels of in-coming broadcast traffic to complex screening and processing of up to eight input/output (I/O) circuits arranged in any combination of fleet satellite broadcast, full period termination using National or North Atlantic Treaty Organization format, or other tactical message transfer systems. The capability of the subsystem is dependent on the particular version of NAVMACS installed (V1, V2, V3, or V5). NAVMACS follows the CUDIXS link control protocol and pro-cesses incoming message traffic. The NAVMACS processor can also be made interactive with the Message Processing and Distribution System aboard ships possessing that capability.

3.

MESSAGE TRAFFIC INPUT

a. NAVCOMPARS is the primary message traffic I/O source for CUDIXS and NAVMACS. b. Messages destined for CUDIXS and NAVMACS are received and processed by NAVCOMPARS via the Automatic Digital Network (AUTODIN) automatic switching centers, direct terminations, or through over-the-counter facilities. c. Incoming message traffic received via the CUDIXS processor is input directly into NAVCOMPARS for processing and distribution.

4.

RF TRANSMISSION LINK CONTROL

a. The CUDIXS and NAVMACS subsystem uses the Fleet Satellite Communications (FLTSATCOM) network and employs a 25-kilohertz satellite channel for the exchange of message traffic. The normal transmission rate is 2400 bits per second (bps), however, operation at 9600 bps and compatibility with demand assigned Multiple access (DAMA) has successfully been demonstrated and employed operationally. The CUDIXS baseband equipment shares a common AN/WSC-5(V) UHF transceiver with other subsystems (e.g., Secure Voice, Submarine Satellite Information Exchange Subsystem). b. Message traffic transmission control on CUDIXS and NAVMACS channels is accomplished by means of a polling and controlled-access protocol that is resident

C-5

ORIGINAL

ANNEX C TO NTP 2 SECTION 2(E) in the CUDIXS software. The CUDIXS terminal has a dual capability, it acts as a link controller for the network and is a member of the network. Link control is maintained by the CUDIXS processor, which transmits a sequence order list (SOL) to network subscribers. The SOL specifies the transmit order for each subscriber terminal and the length of transmission. The transmission portion of the net cycle is independent of message length. Therefore, one message may require several net cycles for a complete transmission. The NAVMACS subscriber terminal reacts to link control protocol demands. c. The subscriber processor queues message traffic by precedence level and restructures each message into data blocks. A header and actual message data are contained within each data block. Based on information contained in the SOL, the subscriber processor calculates when to transmit message traffic and the number of data blocks in the transmission. Header information is used by the link control processor to establish the next SOL (e.g., traffic precedence level, sequence of transmission, number of data blocks in the transmission). The CUDIXS link control protocol acknowledges and confirms the transmission of data blocks. d. Each SOL transmission specifies a period during the subscriber transmission when a random access time slot (RATS) is available. RATS allow inactive net members to contact the link control processor for authorization to transmit message traffic. Requests for active net membership are automatically transmitted during such periods. e. Net cycle times are variable and are influenced by: the number and type of net members, the number of data blocks authorized for a transmission, and the number of RATS within a given transmission. The average cycle time for the SOL and the subscriber transmission period is three minutes.

5.

SUBSCRIBER RECEPTION

a. Each active or inactive subscriber to a CUDIXS net has a subscriber identification (SID) number that is recognized by CUDIXS and NAVMACS processors. When a unit requests access to the net, the CUDIXS operator assigns a SID number from 1 to 60 to that subscriber.

C-6

ORIGINAL

ANNEX C TO NTP 2 SECTION 2(E) b. Units requesting a CUDIXS SID number may do so by contacting the CUDIXS Net Control Station via: operator-to-operator (OTO) access of the control SID of the CUDIXS net, communications spot report (COMSPOT), or termination request. Detailed procedures for accessing CUDIXS are contained in applicable Communications Information Bulletins. If approved, SID assignments will be returned to the requestor via CUDIXS OTO, COMSPOT, termination assignment, or may be promulgated via task force and task group operations plans. Ships assigned CUDIXS terminations are also required to copy the applicable fleet broadcast for the area in which they are operating. c. SID numbers allow screening of incoming message traffic at the subscriber terminal. Where more than one subscriber is active in the network, the subscriber processor passes to the peripheral equipment only that message traffic with the SID number assigned by the CUDIXS operator. The remaining message traffic in the transmission cycle is discarded. A NAVMACS processor installation is required to screen CUDIXS message traffic and up to four channels of fleet broadcast message traffic.

d. Message traffic received by NAVMACS shipboard installations is either output to peripheral equipment (printer) or to a message processing system such as the Computer Data Processing System. Ships with separate message processing installations perform message screening within these systems and not in NAVMACS.

6.

ADDITIONAL CONSIDERATIONS

a. In a task force and task group environment, emission control (EMCON) procedures may be implemented by the operational commander. CUDIXS and NAVMACS operations may be suspended during periods of EMCON. Communications planning should include procedures to follow in the event EMCON is imposed. If at all possible, ships should notify the terminated shore station of scheduled or unscheduled EMCON as soon as possible for contingency communications restoral. Similarly, notification shall be given when EMCON has been secured. During extended periods of EMCON, message traffic normally sent via CUDIXS is routed to the fleet broadcast. Other alternate message restoral actions may include: arrangements for

C-8

ORIGINAL

ANNEX C TO NTP 2 SECTION 2(E) another station to assume message guard responsibilities, guardshift to fleet broadcast, or use of primary shipshore-ship nets. Task force and task group commanders promulgate operational tasking communications messages detailing procedures to follow for contingency communications restoral. b. The submission of a communications shift (COMMSHIFT) message is necessary whenever an addressable command or detachment shifts its guard to and from a full period termination, broadcast, broadcast channel, or a serving communication center. Specific procedures for submitting COMMSHIFT messages may be found in Naval Telecommunications Procedures 4.

C-9

ORIGINAL

ANNEX C TO NTP 2 SECTION 2(E) ANNEX D TACTICAL INTELLIGENCE SUBSYSTEM (TACINTEL)

This annex is classified CONFIDENTIAL and issued under separate cover.

D-1

ORIGINAL (Reverse Blank)

ANNEX C TO NTP 2 SECTION 2(E) ANNEX H PROCEDURES FOR THE TACTICAL RECEIVE EQUIPMENT (TRE) AND TACTICAL RELATED APPLICATIONS (TRAP) BROADCAST

This annex is classified SECRET and issued under separate cover.

H-1

ORIGINAL

ANNEX E TO NTP 2 SECTION 2(E) ANNEX E DEMAND ASSIGNED MULTIPLE ACCESS (DAMA) SUBSYSTEM 1.

INTRODUCTION

The ultra high frequency (UHF) DAMA subsystem was developed to allow multiple baseband subsystems, or users, to simultaneously use a single 25-kilohertz (kHz) satellite channel. The UHF DAMA subsystem time division multiplexes several user subsystems onto a 25-kHz satellite channel, providing increased communications capacity and reliability. Without the UHF DAMA each UHF satellite communications (SATCOM) subsystem requires a separate, dedicated satellite channel.

2.

EQUIPMENT

The UHF DAMA subsystem hardware briefly in the following paragraphs.

is

described

a. TD-1271B/U Multiplexer. The key component of the UHF DAMA subsystem is the TD-1271B/U multiplexer. The TD-1271B/U provides four half-duplex input/output (I/O) base-band data ports. Each port is capable of transmitting and receiving data at rates of 75, 300, 600, 1200, 2400, 4800, or 16,000 bits per second (bps). However, if one port is selected to operate at the 16,000 bps baseband data rate, the other three ports are excluded from operation. During transmission, the TD-1271B/U buffers, convolutionally encodes, interleaves, and modulates each baseband data signal. During reception, the TD-1271B/U performs the reverse process. The TD-1271B/U demodulates, deinterleaves, decodes, and buffers the received data prior to transferring the data to the baseband equipment at the baseband data rate. The TD-1271B/U is designed to interface with the AN/WSC-5(V) and DAMA compatible AN/WSC-3 transceivers. b. Transceivers. The UHF DAMA subsystem requires the use of the AN/WSC-5(V) transceiver or DAMA compatible AN/WSC-3 transceiver. The DAMA compatible AN/WSC-3's are modified AN/WSC-3's which have faster transmitter power up and greater frequency stability characteristics required for UHF DAMA operation. The following paragraphs provide brief descriptions of the AN/WSC-5(V) and the various DAMA compatible AN/WSC-3's.

E-1

ORIGINAL

ANNEX E TO NTP 2 SECTION 2(E) (1) AN/WSC-5(V). The AN/WSC-5(V) provides an interface for connectivity with the TD-1271B/U and does not require any modifications to operate in the UHF DAMA sub-system. When used in the UHF DAMA subsystem, the modems within the AN/WSC-5(V) are not used since the TD1271B/U performs the modulation function. Currently, AN/WSC-5(V)'s are installed at all four Naval Computer and Telecommunications Area Master Stations (NCTAMS) and at Naval Communications Station (NAVCOMMSTA) Stockton, CA. (2) AN/WSC-3. The AN/WSC-3 is modified to increase the speed at which it changes frequencies and to improve its transmission power response time by replacing its Synthesizer module (A8), modifying the A1, A2, A6, and A18 modules, and adding a time division multiple access (TDMA)/non-TDMA mode switch. The modified AN/WSC3 is designated the AN/WSC-3A. (3) AN/WSC-3(V)2 and AN/WSC-3(V)3. The modifications made to the AN/WSC-3 cannot be made to the AN/WSC-3(V)2 and AN/WSC-3(V)3 due to internal design differences. The AN/WSC-3(V)2 and AN/WSC-3(V)3 will receive an interim DAMA modification pending the development of a modification kit. The interim DAMA modification improves the transmission power response of the transceiver, but does not provide an increase in the frequency shift capabilities. The modified AN/WSC-3(V)2 and AN/WSC-3(V)3 are designated the AN/WSC-3A(V)2 and AN/WSC-3A(V)3, respectively. (4) AN/WSC-3(V)15, AN/WSC-3(V)17, and AN/WSC3(V)19. The AN/WSC-3(V)15, AN/WSC-3(V)17, and AN/WSC3(V)19 are manufactured as DAMA compatible. Therefore, no modifications to these transceivers are required for use in the UHF DAMA subsystem.

3.

CONFIGURATIONS

The UHF DAMA subsystem will normally be configured as one of four control-monitor groups: the OK454(V)/WSC, the OK-455(V)/WSC, the OK-481(V)2/FSC, and the OW-101/FSC. The major components for each controlmonitor group are listed in table E-1.

E-2

ORIGINAL

ANNEX E TO NTP 2 SECTION 2(E) CONTROL-MONITOR GROUP OK-454(V)/WSC

OK-455(V)/WSC

OK-481(V)2/FSC

OW-101/FSC

MAJOR COMPONENTS

QUANTITY

TD-1271B/U Multiplexer

1

CY-7970/WSC Electrical Equipment Cabinet

1

MX-10342/WSC Panel Monitor

1

SB-4124/WSC Data and Control Patching Switchboard

1

SB-4125/WSC Intermediate Frequency Patching Panel

1

TD-1271B/U Multiplexer

2

CY-7971/WSC Electrical Equipment Cabinet

1

MX-10342/WSC Panel Monitor

1

SB-4124/WSC Data and Control Patching Switchboard

2

SB-4126/WSC Intermediate Frequency Patching Panel

1

TD-1271B/U Multiplexer

1 to 14

CY-8298/FSC Electrical Equipment Cabinet

4

CY-597A/G Relay Rack Cabinet

1

AM-2123A(V)/U Radio Frequency Amplifier

1

FRT-L Rubidium Frequency Standard

1

SB-4124B/WSC Data and Control Patching Switchboard

2

SB-4180/FSC Intermediate Frequency Patching Panel

1

SB-4179/FSC Synchronizer Patching Panel

1

SB-4182/FSC Patching Switchboard

1

CV-3928/FSC Level Converter

1

SB-4321/FSC Patching Control-Indicator

1

CODEX Model 47050 Digital Sharing Device

5

TD-1271B/U Multiplexer

2

CY-8408/FSC Electrical Equipment Cabinet

1

CY-8409/FSC Electrical Equipment Cabinet

1

CV-3941/FSC Line Level Converter

1

CODEX Model LSI 96/V.29 Modem

2

SB-4249/FSC Intermediate Frequency Patching Switchboard

1

MX-10342/WSC Monitor Panel

1

SB-4124B/WSC Data and Control Patching Switchboard

1

E-3

ORIGINAL

ANNEX E TO NTP 2 SECTION 2(E) CONTROL-MONITOR GROUP

MAJOR COMPONENTS

QUANTITY

SB-4182/FSC Control-Indicator Patching Switchboard

1

SB-4317/FSC Power Panel

1

PP-8074/FSC Switchband Power Supply

1

SB-4248/FSC RF Patching Switchboard

1

AN/WSC-3 DAMA Compatible Transmitter/Receiver

4

AM-6691A/WSC-1(V) UHF Preamplifier/Diplexer/Filter

1

DAMA Control-Monitor Group Configurations Table E-1

E-4

ORIGINAL

ANNEX E TO NTP 2 SECTION 2(E) a. OK-454(V)/WSC Control-Monitor Group (Single DAMA). The OK-454(V)/WSC is commonly referred to as single DAMA since only one TD-1271B/U multiplexer is installed. The OK-454(V)/WSC will be installed on the majority of ships. A typical OK-454(V)/WSC installation is shown in figure E-1.

Figure E-1 A Typical OK-454(V)WSC Installation

E-5

ORIGINAL

ANNEX E TO NTP 2 SECTION 2(E) b. OK-455(V)/WSC Control-Monitor Group (Dual DAMA). The OK-455(V)/WSC is commonly referred to as dual DAMA since two TD-1271B/U multiplexers are installed. The OK-455(V)/WSC will only be installed on larger ships. A typical OK-455(V)/WSC installation is shown in figure E-2.

Figure E-2 A Typical OK-455(V)/WSC Installation

E-6

ORIGINAL

ANNEX E TO NTP 2 SECTION 2(E) c. OK-481(V)2/FSC Control-Monitor Group. The OK481(V)2/FSC is installed at the four NCTAMS and at NAVCOMMSTA Stockton, CA. A typical OK-481(V)2/FSC installation is shown in figure E-3.

Figure E-3 A Typical OK-481(V)/FSC Installation

E-7

ORIGINAL

ANNEX E TO NTP 2 SECTION 2(E) d. OW-101/FSC Control-Monitor Group. The OW101/FSC is installed at selected shore stations. A typical OW-101/FSC installation is shown in figure E-4.

Figure E-4 OW-101/FSC Installation

E-8

ORIGINAL

ANNEX E TO NTP 2 SECTION 2(E) 4.

WAVEFORM STRUCTURE

The UHF DAMA subsystem organizes the satellite channel into frames which are 1.386 seconds in length. Each frame is subdivided into time slots as illustrated in figure E-5. The name and purpose of each slot type is as follows:

Figure E-5 Basic DAMA Frame Format a. Channel Control Orderwire (CCOW) Slot. The CCOW time slot is used by the channel controller to transmit system timing and control information to the subscriber units. It provides the subscriber units with information on the system timing, configuration, and control of a particular satellite channel. The CCOW transmission occurs at the beginning of each frame. b. Return Channel Control Orderwire (RCCOW) Slot. The RCCOW time slot is used by the subscriber units to transmit information to the channel controller. It permits the subscriber units to request access to user time slots and to respond to channel controller inquiries. c. Ranging Slot. The Ranging time slot is used by the channel controller and the subscriber units to determine the range (distance) to the satellite. The slot allows each terminal to transmit and receive its own data stream for the purpose of calculating the range to the satellite, based on the round-trip delay time. Ranging is performed to establish transmitter

E-9

ORIGINAL

ANNEX E TO NTP 2 SECTION 2(E) synchronization with the UHF DAMA frame format. d. Link Test Slot. The Link Test time slot is used by individual subscribers to evaluate the performance of their satellite link. The subscriber is able to transmit a fixed data stream to the satellite, receive that bit stream, and then perform error analysis, automatically. e. User Slot. The User time slots are used by subscriber units to transmit or receive data. There are three segments of time slots in each frame designated as A, B, and C. Segment A may contain from 1 to 5 discrete time slots, segment B may contain from 1 to 11 discrete time slots, and segment C may contain from 1 to 6 discrete time slots. The number of discrete time slots for each segment depends on the baseband data rate, the forward error correction (FEC) coding rate, and the transmission burst rate as influenced by the radio frequency environment. (1) For example, a given data time slot in segment A can support one circuit if the baseband data rate is 1200 bps, the FEC coding is at a rate of 3/4, and the transmission burst rate is 19,200 symbols per second (sps). Another configuration of segment A can support 5 circuits if all of the baseband data rates are 75 bps, the FEC coding is at a rate of 1/2, and the transmission burst rate is 19,200 sps. Combinations of all possible A, B, and C time slot segment configurations result in over 2500 selectable frame formats. (2) Figure E-6 illustrates one typical frame format that could be built when, for example, secure voice, Common User Digital Information Exchange Subsystem and Naval Modular Automated Communications Subsystem (CUDIXS and NAVMACS), tactical intelligence (TACINTEL), and teletypewriter (TTY) subsystem circuits are simultaneously using the UHF DAMA subsystem. The data that is to be transmitted is assigned a data slot equivalent to the capacity required to accommodate it. In the figure, the secure voice circuit with a baseband data rate of 2400 bps is assigned one of the two 2400 bps slots available and placed in segment B. The CUDIXS and NAVMACS circuit with a baseband data rate of 2400 bps is assigned the other 2400 bps slot, in segment C. The TACINTEL circuit with a baseband data rate of 4800 bps is assigned the only 4800 bps slot, in segment B, and six TTY circuits with baseband data rates of 75 bps each are

E-10

ORIGINAL

ANNEX E TO NTP 2 SECTION 2(E) assigned the five 75 bps slots to fill segment A and the first 75 bps slot in segment C.

Figure E-6 Typical DAMA Frame Format

E-11

ORIGINAL

ANNEX E TO NTP 2 SECTION 2(E) 5.

MODES OF OPERATION

The UHF DAMA subsystem is designed to operate in three modes: automatic control, semi-automatic control, and distributed control. In all modes of operation, one of the DAMA terminals must be configured as the channel controller. The channel controller transmits information on system timing, configuration, and control of a particular satellite channel to the subscriber units and receives requests for access to user time slots from the subscriber units. The following paragraphs provide brief descriptions of the modes of operation. a. Automatic Control. In the automatic control mode, the channel controller maintains a pool of user time slots and dynamically assigns these time slots in response to user requests. The channel controller pools time slots from one or more satellite channels. User access requests are transmitted automatically by the user terminals via the RCCOW time slot and subsequent slot connections are made automatically by the channel controller via the CCOW time slot. An Automatic DAMA Controller, which supports the automatic control mode and which supports the Communications Support System (CSS) and Copernicus Architectures, will be developed as a future capability. b. Semi-Automatic Control. In the semi-automatic control mode, an operator at the channel controller assigns user time slots in response to user requests. A Semi-Automatic DAMA Controller, which uses the semiautomatic control mode of the TD-1271B/U to allocate and control the UHF DAMA subsystem resources, is being developed. c. Distributed Control. In the distributed control mode, pre-assigned, fixed frame formats and slot assignments for each satellite channel are used. The frame format and slot assignment information, specified in appropriate communications directives, are entered manually at the channel controller and are transmitted by the channel controller to the user terminals via the CCOW time slot. Currently, the distributed control mode is the only mode used.

6.

CURRENT OPERATION

E-12

ORIGINAL

ANNEX E TO NTP 2 SECTION 2(E) a. For current UHF DAMA subsystem operation, a single master control station is located within each satellite footprint. The master control stations are located at the four NCTAMS and at NAVCOMMSTA Stockton, CA. Multiple TD-1271B/U terminals are installed at each master control station. Each TD-1271B/U can support up to four baseband circuits. During normal operations, the TD-1271B/U terminals at the master control stations are configured as the channel controllers. The channel controller performs all of the CCOW functions required by the UHF DAMA subsystem for control of the satellite channel. b. The number of TD-1271B/U terminals installed aboard each ship varies according to the baseband circuit requirements of the platform. Any DAMA-equipped platform with full-duplex capability can be configured as the channel controller. This capability permits shipboard terminals to act as alternate control stations providing an emergency backup function for the shore-based channel controllers. c. Operationally, a user terminal has its baseband port automatically connected to a data time slot when the operator enters the proper slot number into the front panel keypad of the TD-1271B/U. Each UHF SATCOM subsystem that uses the UHF DAMA subsystem has a specific slot number (i.e., data time slot) assigned for that subsystem. The circuits are generally operated on a netted basis. The circuit numbers used by the operators are assigned by the Fleet Commander in Chief. This mode of operation is referred to as the distributed control mode. d. The UHF DAMA subsystem appears transparent to the user subsystems. Once all of the equipment is installed and the initialization procedures are completed, the precedence level for network transmissions and the five-digit call number for the network are entered at the front panel keypad of the TD-1271B/U. The circuit connect is made automatically, provided the circuit number entered is contained within the current frame format for the channel on which the subscriber is operating. In practice, once the link is established, the operator will not have to repeat these procedures, since most subsystem networks are in use on a continuous

E-13

ORIGINAL

ANNEX E TO NTP 2 SECTION 2(E) basis. e. Users equipped with AN/WSC-3A's are capable of operating with one transceiver per TD-1271B/U (i.e., in the half-duplex mode) since the AN/WSC-3A can rapidly shift between the satellite uplink and downlink frequencies. However, the AN/WSC-3A is unable to receive data in one time slot and transmit data in the next adjacent time slot, since a certain amount of time is required for the transmitter to reach full power prior to transmitting data. Because the receiver and transmitter would have to simultaneously access the DAMA channel to receive and then transmit data in adjacent time slots, the condition is referred to as "contention". The possibility of contention problems can be eliminated by careful operator selection of the DAMA frame format. A more detailed explanation of DAMA contention and frame format selection may be found in the UHF DAMA Operator's Handbook (Shore) (FSCS-211-84-2A), and the UHF DAMA Operator's Handbook (Shipboard) (FSCS-211-84-1A).

7.

TRANSITION

a. Transition Plan. To minimize the impact on fleet operations, the transition of UHF SATCOM subsystems to the UHF DAMA subsystem was planned in four phases. During Phase I, TACINTEL, Fleet Imagery Support Terminal (FIST), Fleet Secure Voice Communications (FLTSEVOCOM), and restricted secure voice networks (i.e., High Command, Battle Group Secure Voice, Commander in Chief privacy, etc.) were transitioned to the UHF DAMA subsystem. During Phase II, Tactical Data Information Exchange Subsystem A (TADIXS A) was transitioned to the UHF DAMA subsystem. During Phases III and IV, CUDIXS and NAVMACS, Submarine Satellite Information Exchange Subsystem (SSIXS), and Officer in Tactical Command Information Exchange Subsystem II (OTCIXS II) will be transitioned to the UHF DAMA subsystem.

E-14

ORIGINAL

ANNEX E TO NTP 2 SECTION 2(E) b. DAMA/Non-DAMA Interoperability. The transition of most UHF SATCOM subsystems to the UHF DAMA subsystem is taking place so that subscribers that have been converted to the UHF DAMA subsystem can communicate with subscribers that have not yet been converted. Equipment installed at the shore-based master control stations provides an interface between the DAMA and nonDAMA capable subscribers.

E-15

ORIGINAL

ANNEX F TO NTP 2 SECTION 2(E) ANNEX F SUBMARINE SATELLITE INFORMATION EXCHANGE SUBSYSTEM II (SSIXS II) 1.

INTRODUCTION

This annex provides a description of SSIXS II, discusses its operational applications, and presents detailed information on subsystem operation. Since the introduction of SSIXS, shore sites have received a major enhancement and are now referred to as SSIXS II. However, the equipment installed in the submarines remains the initial SSIXS.

2.

SSIXS II

a. SSIXS was designed to complement existing very low frequency (VLF), low frequency, medium frequency, and high frequency communication links between shore-based submarine Broadcast Control Authorities (BCA's) and submarines (see figure F-1). b. The subsystem provides the submarine commander with the capability to receive messages transmitted via satellite at scheduled intervals (Group Broadcasts). Between Group Broadcasts, submarines may transmit messages to the BCA, including a request for any messages held in queue. The shore terminal responds to these transmissions with acknowledgements for the individual messages just received, and transmits all messages held that are addressed to the querying submarine. The availability of two modes of operation, Group Broadcast and Query and Response, permits the choice of whether to be active or passive at the discretion of the submarine commander. A single SSIXS network may have up to 120 submarine subscribers. A single network may be established on more than one satellite (e.g., when the operating area under the cognizance of a BCA extends beyond the footprint of a single satellite), or two BCA's may share a single satellite channel by offsetting the time of their respective Group Broadcast transmissions. c. The SSIXS II baseband equipment installed at the BCA locations ashore performs dual functions. SSIXS II:

F-1

ORIGINAL

ANNEX F TO NTP 2 SECTION 2(E)

Figure F-1 SSIXS (1) Accepts messages for delivery to submarines via satellite or VLF paths, and receives messages from submarines via the satellite path for onward delivery.

F-2

ORIGINAL

ANNEX F TO NTP 2 SECTION 2(E) (2) Provides the shore SSIXS II operator with the capability to compose and control the VLF VERDIN broadcasts by an interface with the Integrated Submarine Automated Broadcast Processing System. d. The SSIXS subscriber terminals afloat perform the complementary operations necessary to permit reception of Group Broadcasts or conduct Query and Response functions.

3.

MESSAGE TRAFFIC INPUT

At the BCA, messages, addressed to submarines, that have been received from Automatic Digital Network (AUTODIN), Naval Communications Processing and Routing System, or locally over-the-counter in the message center are entered into the SSIXS II shore terminal manually, by using the Submarine Message Automated Routing Terminal (SMART) or by high-speed paper tape reader. Aboard the submarine, the message traffic is input via the teletypewriter or tape reader equipment. Nuclear powered attack submarines (SSN's) that have the Data Link Control System installed have an additional input and output capability via the sensor interface unit for over-thehorizon targeting (OTH-T) messages. (OTH-T messages are segregated in SSIXS II by the presence of a unique twocharacter (OH) message indicator code in the SSIXS II message format.)

4.

RADIO FREQUENCY (RF) TRANSMISSION (LINK CONTROL)

Ashore, the SSIXS II subsystem shares access to the same satellite RF terminal equipment at the Naval Computer and Telecommunications Area Master Station (NCTAMS) as other ultra high frequency (UHF) satellite communications (SATCOM) subsystems, with the exception of Commander Submarine Group SEVEN (COMSUBGRU 7), Yokosuka, Japan, which is equipped with dedicated AN/WSC-3 transceivers. Since each BCA is remotely located from the NCTAMS, line modems and land lines are required for interconnection. The submarine UHF RF terminal is the single-channel, half-duplex AN/WSC-3(V)2. SSIXS II transmissions are at the 4800 bits per second rate. Compatibility with demand assigned Multiple access has been successfully demonstrated and may be employed in the future. Essentially all SSN's are being equipped with dual SATCOM installations to permit simultaneous SATCOM and line of sight operations, simultaneous participation

F-3

ORIGINAL

ANNEX F TO NTP 2 SECTION 2(E) in additional satellite networks (e.g., Officer in Tactical Command Information Exchange Subsystem (OTCIXS), Secure Voice), and for redundancy.

5.

MESSAGE TRAFFIC RECEPTION

Each subscriber to a SSIXS II network is assigned a unique subscriber identification (ID) number, which is used in all transmissions to or from the subscriber. The ID numbers are stored within the shore station and subscriber processors. The application of these numbers takes many forms as shown below. a. At the shore stations, the ID number, when combined with broadcasts, will determine the number of times message traffic is transmitted to a subscriber. b. In the event a submarine subscriber transmits to the shore station, this identifying number will be included in the transmission. If the number is not included, the shore station cannot acknowledge the transmission. c. The ID number is used at subscriber terminals to screen broadcast transmissions for message traffic directed to the subscriber. The remaining data in the transmission is discarded. In the link control protocol employed by SSIXS II, the broadcast of message traffic does not require an acknowledgment by the subscriber.

6.

SPECIAL INTELLIGENCE (SI) SSIXS II

In addition to the general service (GENSER) SSIXS II subsystems described above, an additional SSIXS II capability, dedicated to SI communications and designated SI SSIXS II, is installed at all shore sites. SI SSIXS II is functionally similar to GENSER SSIXS II.

7.

EQUIPMENT CONFIGURATION Table F-1 lists the equipment used in SSIXS II.

a. Shore-based Processing AN/FSQ-163

Link

F-4

Control

and

Message

ORIGINAL

ANNEX F TO NTP 2 SECTION 2(E) Shore-based Link Control and Message Processing AN/FSQ163

Subscriber (Submarine) Terminal Message Processing

Processor

AN/FYK-29

Interconnecting Group (IG)

ON143(V)4/USQ

Reproducer (magnetic tape)

RP-357/FSQ

Magnetic Disk Memory Unit

MU-851

Operator Workstation

IP-1660/FSQ

System Console

TT-835/U

Submarine Message Automated Routing Terminal (SMART)

AN/FYK-33

Recorder-Reproducer (perforated tape)

RD397B(V)3/U

Patch Panel

SB-4325/FSQ

Cryptographic Equipment

KG-36 or 35

Line Modems

CODEX LSI 4800

Modem Sharing Units

CODEX MSU7012

IG

ON143(V)5/USQ or ON143(V)6/USQ

Cryptographic Equipment

KG-36

Teletypewriter

AN/UGC-20B or UGC-136AX

Keyboard Punch

TT-253/UG

Converter, Audio Digital (not CV-333/U part of SSIXS II) RF Terminal, Subscriber Installation

Transceiver, UHF

AN/WSC-3

NOTE: Shore based list of equipment is applicable to an installation at a submarine operations control center. The NAVCOMPARS or the AUTODIN network may pass message traffic for processing by SSIXS II; however, these systems interface with SSIXS II through SMART and have not been included in this listing.

SSIXS II Equipment Table F-1 8.

SSIXS II INSTALLATIONS

F-5

ORIGINAL

ANNEX F TO NTP 2 SECTION 2(E) The subscriber terminals are installed in nuclear powered fleet ballistic missile submarine (SSBN) and SSN type submarines. The shore terminal installations are listed in the table F-2. ORGANIZATION

LOCATION

COMSUBGRU 7

Yokosuka, Japan

COMSUBGRU 8

Agnano, Italy

COMSUBGRU 10

Kings Bay, GA

COMSUBPAC

Pearl Harbor, HI

COMSUBLANT

Norfolk, VA

SSIXS II Shore Locations Table F-2 9.

OPERATION

The following procedures for SSIXS.

references

provide

detailed

operations

a. SCOM-MAN-SXS-S20/U-R01C0 Computer Systems Operation and Support Manual for The Submarine Satellite Information Exchange Subsystem II (SSIXS II) Shore dated 30 September 1990. b. SOM(P)-6436 System Operator's (ON-143(V)5 Subscriber) dated 1 April 1986.

Manual

for

SSIXS

c. SOM(P)-6442 System Operator's (ON-143(V)6 Subscriber) dated 6 August 1985.

Manual

for

SSIXS

F-6

ORIGINAL

ANNEX G TO NTP 2 SECTION 2(E) ANNEX G FLEET IMAGERY SUPPORT TERMINAL (FIST) 1.

INTRODUCTION

This annex provides information on the operation and management of the FIST system. These procedures provide Naval Computer and Telecommunications Command (NAVCOMTELCOM) and Naval Security Group personnel with guidelines to ensure mutual understanding of each organization's role in the daily operation of the FIST system.

2.

BACKGROUND

FIST is a multifunction digital imagery transmission and processing system. The system provides functions which support the exploitation, transmission, receipt, storage, and retrieval of digital images. FIST also allows for annotation and production of hard copy images. Figure G-1 illustrates a fundamental FIST satellite functional circuit. Using the exploitation functions, the image can be enhanced in a variety of ways to facilitate the intelligence specialist's interpretation tasks. The system transmits and receives images and/or text over existing secure military communications channels.

3.

FIST SYSTEM ARCHITECTURE

a. Figure G-2 illustrates a FIST ultra high frequency (UHF) satellite communications (SATCOM) shore and afloat configurations with the demand assigned Multiple access (DAMA) capability. The FIST shore console illustrated in figure G-2 is comprised of assemblies and sub-assemblies, a power panel, two disk drives, high resolution monitor, message display, trackball, keyboard, controller and processor, hard copy unit, print tray, exhaust fan, connector panel, and system cabling. The following paragraphs describe the components of the FIST console functional block diagram illustrated in figure G-3. b. The FIST has two disk drives which are used to load and store information onto floppy diskettes. This information includes the FIST Operating System and images. Under normal conditions, disk A is used to load

G-7

ORIGINAL

ANNEX G TO NTP 2 SECTION 2 (E)

Figure G-1 Fundamental FIST Satellite Circuit the operating system and disk B is used for the storage or retrieval of images. c. The high resolution monitor is used to display images, text, and menus. The display is 512 x 512 pixels with 8 bits per pixel. d. The message display is used for system test status and diagnostic messages, communications operations, and output of cursor position and measurement data. After the operating system has been loaded, the software version number will be shown on the message display. In addition, the message display indicates the status of the FIST console mode of operation, x-y coordinates of the cursor on the high resolution monitor, mensuration and error messages. e. The trackball is used to position the cursor on the high resolution monitor for graphic, mensuration, and position identification. Movement of the trackball causes the cursor to move across the screen. In graphics and gray scale mode, once the cursor reaches the edge of

G-8

ORIGINAL

ANNEX G TO NTP 2 SECTION 2 (E)

the screen, further movement of the trackball toward that edge has no effect on the displayed image. The gray stretch function, Key 19 on the keyboard, allows the contrast and brightness of an image to be adjusted by simply positioning the cursor (left to right adjust contrast and top to bottom adjusts brightness). Starting points for graphics and mensuration functions are also set using the trackball.

Figure G-2 FIST UHF SATCOM Shore/Afloat Configurations

G-9

ORIGINAL

ANNEX G TO NTP 2 SECTION 2 (E)

Figure G-3 Functional Block Diagram

G-10

ORIGINAL

ANNEX G TO NTP 2 SECTION 2 (E)

4.

NAVAL COMPUTER AND TELECOMMUNICATIONS AREA MASTER STATION (NCTAMS) AND FLEET TELECOMMUNICATIONS OPERATION CENTER (FTOC) CONTROL OF FIST

Fleet Satellite Communications (FLTSATCOM) access for FIST is arranged by the Fleet Commanders in Chief (FLTCINC's) through the supporting NCTAMS as part of established UHF SATCOM channel assignment allocation plans. The NCTAMS's perform net control station and satellite control functions for FLTSATCOM operations. The FTOC informs Commander Naval Computer and Telecommunications Command (COMNAVCOMTELCOM) and the respective FLTCINC of the operational status of the telecommunications systems within the assigned communications area.

5.

FIST OPERATIONS

a. FIST is a shore-ship-shore UHF SATCOM secure system which provides classified imagery to afloat units. The system is first set up in the secure voice mode for the FIST broadcast station to establish communications with participating afloat units. The FIST shore station then transmits an imagery broadcast to participating units. After the broadcast is complete, the shore FIST will revert back to secure voice and receive acknowledgements or requests for repetition from all participating units. b. There are three transmit and receive modes of operation for FIST. (1) The first method is the HANDSHAKE mode which requires the receiving terminal to acknowledge receipt of the imagery transmission with the sending site. (2) The second method is the BROADCAST mode which does not require the receiving site to acknowledge receipt of the image. (3) The third method is the EAVESDROP mode which is receive only and allows the receive terminal to "listen in" on a transmission between two other terminals.

G-11

ORIGINAL

ANNEX G TO NTP 2 SECTION 2 (E)

c. Images are stored or transmitted in either a compressed or an uncompressed format. The compression algorithm enables the reduction in both transmission time and storage capacity requirements without degradation of essential elements of information.

G-12

ORIGINAL

ANNEX I TO NTP 2 SECTION 2(E) ANNEX I ACRONYMS AAWC ABCS AC ACK ACP AFSATCOM AIG AIRTERM AJ AM ANDVT ARQ ASUWC ASW ASWC ATLCF ATP ATSM AUTODIN AZ BCA BCS BGPHES BOM bps BPU BW C2 C3 C 4I

Anti-Air Warfare Commander Alternate Broadcast Control Station alternating current acknowledgement Allied Communications Publication Air Force Satellite Communications address indicating group airborne terminal antijam amplitude modulation Advanced Narrowband Digital Voice Terminal automatic report request Anti-surface Warfare Commander antisubmarine warfare Antisubmarine Warfare Commander Alternate TACINTEL Link Control Facility Advanced Tracer Prototype Automated TRAP Status Messages Automatic Digital Network azimuth Broadcast Control Authority Broadcast Control Station Battle Group Passive Horizon Extension System bit-oriented message bits per second buffer processing unit bandwidth command and control command, control, and communications command, control, communications, computers

I-1

ORIGINAL

ANNEX I TO NTP 2 SECTION 2(E) CARP CCC CCOW CCS MK II CCSC CCSS CDPS CES CG, FMF CG, MCCDC

CIB CIC CINC CINCLANTFLT CINCPACFLT CINCUSNAVEUR CJCS CMC CNO CO COCC COMMPLAN COMMSHIFT COMNAVCOMTELCOM

COMNAVSPACECOM COMSAT COMSEC COMSPAWARSYSCOM

and intelligence communications alternate routing plan CINC (Commander in Chief) Command Complex channel control orderwire Combat Control System Mark II Cryptologic Combat Support Console Cryptologic Combat Support System Communication Data Processing System Coast Earth Station Commanding General, Fleet Marine Forces Commanding General, Marine Corps Combat Development Center Communications Information Bulletin Combat Information Center commander in chief Commander in Chief, U.S. Atlantic Fleet Commander in Chief, U.S. Pacific Fleet Commander in Chief, U.S. Naval Forces Europe Chairman of the Joint Chiefs of Staff Commandant of the Marine Corps Chief of Naval Operations commanding officer Contractor Operations Control Center communications plan communications shift Commander, Naval Computer and Telecommunications Command Commander, Naval Space Command Communications Satellite communications security Commander, Space and Naval

I-2

ORIGINAL

ANNEX I TO NTP 2 SECTION 2(E) COMSPOT COMSUBGRU COMSUBLANT COMSUBPAC CONUS COTR COTS CRT CSG CSOC CSS CUDIXS

Warfare Systems Command communications spot report Commander Submarine Group Commander Submarine Force, U.S. Atlantic Fleet Commander Submarine Force, U.S. Pacific Fleet continental United States Contracting Officer's Technical Representative commercial off-the-shelf cathode-ray tube Cryptologic Support Group Consolidated Space Operations Center Communications Support System Common User Digital Information Exchange Subsystem

CV CWC

aircraft carrier Composite Warfare Commander

DAMA

DTC-2

Demand Assigned Multiple Access decibel referenced to one watt direct current Defense Communications System Defense Information Systems Agency Department of Defense data processing set differential phase shift keying Defense Satellite Communications System Defense Switched Network Defense Special Security Communications System Desktop Tactical Computer 2

EC EAM EASTPAC EHF

earth coverage emergency action message Eastern Pacific extremely high frequency

dBW dc DCS DISA DOD DPS DPSK DSCS DSN DSSCS

I-3

ORIGINAL

ANNEX I TO NTP 2 SECTION 2(E) EIRP EL EMCON ESM ESS ET ETR FDMA FDOA FEC FIST FLTBCST FLTCINC FLTRACEN FLTSAT FLTSATCOM FLTSEVOCOM FM FMF FOSIF FSK FSM FTOC FTP

G/T GENSER GLOBIXS GOFR

GSCS Control Station HCSI

effective isotropic radiated power elevation emission control electronic warfare support measures Electronic Support Squadron earth terminal estimated time of return frequency division multiple access frequency difference of arrival forward error correction Fleet Imagery Support Terminal fleet broadcast Fleet Commander in Chief Fleet Training Center Fleet Satellite Fleet Satellite Communications Fleet Secure Voice Communications frequency modulation Fleet Marine Force Fleet Ocean Surveillance Information Facility frequency shift keying FLTSATCOM Spectrum Monitor Fleet Telecommunications Operations Center Fleet Telecommunications Procedures receive gain-to-noise temperature general service Global Information Exchange System Geolocation of Radio Frequency Interference (RFI) Government Satellite

Hughes Communications

I-4

ORIGINAL

ANNEX I TO NTP 2 SECTION 2(E) HF HFDF HICOM HQMC HSFB I/O I&W ID IF IFSM IG IMMIS

Information INMARSAT IO IOC IR ISABPS

ISDB

ISN IXS

Services, Incorporated high frequency high frequency direction finding high command Headquarters, Marine Corps High Speed Fleet Broadcast input/output indication and warnings identification intermediate frequency Interim FLTSATCOM Spectrum Monitor Interconnecting Group Integrated MILSATCOM (Military Satellite Communications) Management System International Maritime Satellite Indian Ocean initial operational capability infrared Integrated Submarine Automated Broadcast Processing System Integrated SATCOM (Satellite Communications) Database internal sequence number Information Exchange Subsystem

JCS JCSC

Joint Chiefs of Staff Joint Communications Satellite Center

JIC JMPA

Joint Intelligence Center Joint MILSATCOM Panel Administrator

kbps kHz

kilobits per second kilohertz

LAN LANT

local area network Atlantic

I-5

ORIGINAL

ANNEX I TO NTP 2 SECTION 2(E) LEASAT LES LF LFT&RS Receive LIMDIS LNA LOS LRM LSR MAGTF HQ MARISAT MB MED MF MHz MIJI MILSATCOM MINTERM MOA MODEM MOP MPDS MSO MSO MU MUS MUSIC

NAK NATO NAVCOMMAREA NAVCOMMSTA NAVCOMPARS

NAVCOMTELCOM

Leased Satellite Lincoln Experimental Satellite low frequency Landing Force Transmit and Subsystem limited distribution low noise amplifier line of sight low rate multiplexer link status report Marine Air Ground Task Force Headquarters Maritime Satellite megabits Mediterranean medium frequency megahertz meaconing, intrusion, jamming and interference military satellite communications miniaturized terminal memorandum of agreement modulator/demodulator memorandum of policy Message Processing and Distribution System MILSATCOM Systems Organization Mine Sweeper Ocean message unit mission unique software multi-user special intelligence communications negative acknowledgement North Atlantic Treaty Organization Naval Communications Area Naval Communications Station Naval Communications Processing and Routing System Naval Computer and Telecommunications Command

I-6

ORIGINAL

ANNEX I TO NTP 2 SECTION 2(E) NAVCOMTELSTA NAVIXS NAVMACS NAVPUBFORMCEN NAVSATCOMMFAC NAVSECGRU DET NAVSECGRUACT NAVSOC NAVSPOC NAVTECHTRACEN NCA NCO NCS NCTAMS

NCTS

NDRO NECOS NiCd NITF NSCS NTCS-A NTP NWP OBU

OMFCU

Naval Computer and Telecommunications Station Navy Information Exchange System Naval Modular Automated Communications Subsystem Naval Publications and Forms Center Naval Satellite Communications Facility Naval Security Group Detachment Naval Security Group Activity Naval Space Operations Center Naval Space Command Operations Center Naval Technical Training Center National Command Authorities net control officer network control station Naval Computer and Telecommunications Area Master Station Naval Computer and Telecommunications System (or Station) non-destructive read-only net control station nickel cadmium National Imagery Transmission Format Navy Satellite Control Station Navy Tactical Command Systems Afloat Naval Telecommunications Procedures Naval Warfare Publication Ocean Surveillance Information System Baseline Upgrade outboard message format conversion unit

I-7

ORIGINAL

ANNEX I TO NTP 2 SECTION 2(E) OPELINT OPINTEL OPSCOMM OPSEC OSIS OTCIXS

OTH-T OTO PAC PCC PHM POC POCG POST PQS PSK RATS RCCOW

operational electronic intelligence operational intelligence operator communications operations security Ocean Surveillance Information System Officer-in-Tactical Command Information Exchange Subsystem over-the-horizon targeting operator-to-operator Pacific Primary Control Center patrol hydrofoil missiles point of contact Program Operations Coordination Group Prototype Ocean Surveillance Terminal personnel qualification standards phase shift keying

RPM Rx

random access time slot return channel control orderwire radio direction finding Research and Development Information Exchange System research, development, test, and evaluation radio frequency radio frequency interference reduced instruction set computer revolutions per minute receive

SATCOM SCT SDS SDT SECVOX SERVSCOLCOM SES

satellite communications single channel transponder Satellite Data Systems scheduled downtime secure voice Service School Command ship earth station

RDF RDIXS RDT&E RF RFI RISC

I-8

ORIGINAL

ANNEX I TO NTP 2 SECTION 2(E) SEW SEWC SGLS SGT SHF SI SID SIGINT SIOP SMART SNR SOL SPS SRWI SSA SSBN SSES SSIXS

SSN SSS STU-III STWC SUPPLOT TACINTEL TACSAT-1 TACSATCOM TACTERM TADIXS TADIXS A TCC

Space and Electronic Warfare Space and Electronic Warfare Commander Space-Ground Link System satellite ground terminal super high frequency special intelligence subscriber identification number signal intelligence Single Integrated Operational Plan Submarine Message Automated Routing Terminal signal-to-noise ratio sequence order list symbols per second satellite radio wireline interface SATCOM signal analyzer nuclear powered fleet ballistic missile submarine Ship's Signals Exploitation Space Submarine Satellite Information Exchange Subsystem nuclear powered attack submarine System Supervisor Station Secure Telephone Unit, Third Generation Strike Warfare Commander supplementary plot Tactical Intelligence Subsystem Tactical Communications Satellite-1 tactical satellite communications tactical terminal Tactical Data Information Exchange Subsystem Tactical Data Information Exchange Subsystem A Tactical Command Center

I-9

ORIGINAL

ANNEX I TO NTP 2 SECTION 2(E) TCC TDM TDMA TDOA TDP TDPCON TFS TGF TLC TLCF TOED TRAP BCST TRE TSM TSR TSR TSR TT&C TTY TU TWCS Tx U&S UFO UHF UK URDB USCINCSPACE USCINCCENT USN USNS VERDIN VFCT VHF VLF

Transmission Control Codes time division multiplex time division multiple access time difference of arrival tactical data processor TDP Controller traffic flow security TADIXS A Gateway Facility TACINTEL Link Control TACINTEL Link Control Facility TRAP Operational Exchange/Directive Tactical Related Applications Broadcast Tactical Receive Equipment TRAP System Monitor Telecommunications Service Request traffic statistics report TRAP status report telemetry, tracking, and command teletypewriter transmission unit TOMAHAWK Weapons Control System transmit unified and specified UHF Follow-on ultra high frequency United Kingdom User Requirements Database Commander in Chief, U.S. Space Command Commander in Chief, U.S. Central Command U.S. Navy U.S. Naval Service submarine multi-channel broadcast system voice/variable frequency carrier telegraph very high frequency very low frequency

I-10

ORIGINAL

ANNEX I TO NTP 2 SECTION 2(E) VME

Versamodule Eurocard

WESTPAC

Western Pacific

I-11

ORIGINAL

ANNEX J TO NTP 2 SECTION 2(E) ANNEX J GLOSSARY Antijam (AJ) - The equipment, processes, or techniques used to reduce the effects of jamming of a desired radio frequency (RF) signal. Asynchronous Transmission - A transmission in which each character or symbol is synchronized individually, usually by the use of start and stop bits (i.e., teletypewriter signals). Azimuth - An angular measurement of direction in degrees from a known reference (e.g., true North). Bandwidth - The range of frequencies over which an amplifier or receiver will respond and provide a useful output. Baseband - The band of frequencies occupied by the aggregate of the transmitted signals used to modulate a carrier, before they combine witha carrier in the modulation process. Binary Phase Shift Keying (BPSK) - A method of modulation that allows the instantaneous phase of the carrier to remain unchanged or shifted 180o. Bit - Abbreviation for binary digit (1 and 0). Bit Error Ratio (BER) - The total number of incorrect binary (Bit) values divided by the total number of binary values transmitted, received, or processed over a circuit or system during a specified time period (e.g., 1 x 10-5 BER). Bit Stuffing - A method of synchronizing two or more bit streams (channels) that do not have the same bit rates, by inserting additional noninformational bits to cause a bit-rate match of the channels (i.e., to cause two channels to operate at 4800 bits vice one channel at 4800 and the other at 2400 bits). Burst Transmission - A radio transmission in which the information is stored and then released at 10 to 100 or more times faster than the normal speed (usually noted in symbols per second (sps)). The received signals are J-1

ORIGINAL

ANNEX J TO NTP 2 SECTION 2(E) recorded and then processed at normal speeds.

C-band - The radio frequency band between 3.9 and 6.2 gigahertz (GHz). Carrier - The constant RF which may be modulated by changing the amplitude, frequency, or phase. Communications Security (COMSEC) - The protection resulting from all measures designed to deny unauthorized persons information of value which might be derived from the possession and study of telecommunications. Cross Polarization - The use of different electronic polarizations (normally right hand and left hand) of the satellite uplink and downlink frequencies. Cross polarization is affected by polarization of the antenna. Demand Assigned Multiple Access (DAMA) - An access scheme in which access to a channel by geographically separated communications terminals is allocated on user demand. Despun Antenna - A satellite antenna mounted on a platform rotating counter to and at the same angular velocity as the spinning satellite, thus maintaining a fixed antenna orientation. Differential Phase Shift Keying (DPSK) - A method of encoding each element of a signal for transmission as a change in the phase of the carrier with respect to its previous phase angle. Digital Interface - A common connection for sharing information in a binary form. Downlink - A transmission link carrying information from a satellite to earth. Diplexer - A frequency-dependent device that may be used to separate or combine signals. Down-converter - A device which translates frequencies so that the output frequencies are lower than the input frequencies. Drift - The slow undesired movement of a satellite from its intended position.

J-2

ORIGINAL

ANNEX J TO NTP 2 SECTION 2(E) Duplex Circuit - A communications circuit that allows each end user to simultaneously transmit and receive information. Earth Terminal (ET) - The earth portion of a satellite link that receives, processes, and transmits satellite communications. Effective Isotropic Radiated Power (EIRP) - The increase in radiated signal relative to an isotropic radiator (a radiation that has the same values along axes in all directions). The gain in signal is due to the net gain of the transmitting antenna. Elevation - An angular measurement in a vertical plane measured in degrees from the horizon. The height to which something is elevated above a point of reference, such as the ground. Ephemeris Data - The position of a satellite spacecraft in space with respect to time.

or

Extremely High Frequency (EHF) - The frequency band extending from 30 to 300 GHz. Frequency Division Multiple Access (FDMA) - The use of frequency division to provide multiple and simultaneous transmissions to a single transponder. Frequency Shift Keying (FSK) - A frequency modulation technique in which the modulating wave shifts the output frequency between predetermined values. The Navy standard shift is 170 Hz between center frequencies. Geosynchronous (Geostationary) Satellite - An earth satellite whose period of revolution is equal to the period of rotation of the Earth about its axis. In that the satellite position is relatively stationary to a point on the Earth's surface, such a satellite may also be known as geostationary. Guard Band - The unused frequency band between two satellite transponder channels which provides a margin of safety against mutual interference. High Frequency (HF) - The frequency band extending from 3 to 30 MHz.

J-3

ORIGINAL

ANNEX J TO NTP 2 SECTION 2(E) Interconnect Facility (ICF) - A facility where one or more communication links used to provide local area service between or among several locations which, taken as a whole, form a node in the network. Jamming (or jamming signals) - The intentional transmission of radio signals in order to interfere with the reception of signals from another station, particularly used in electronic countermeasures. Ku-band - The frequency band between 15.35 and 24.50 GHz. Look Angle - The angle, relative to the earth's surface, at which a satellite antenna is pointing at the satellite. Modulation - The process of varying or modifying the characteristics of a frequency (carrier) so that it varies in step with the intelligence or data, superimposing information on an RF carrier wave. Multiple Access - In satellite communications, the capability of more than one terminal to use the same satellite channel at any given time. Multiplexing - The process of combining several signals or inputs for transmission over the same circuit. Node - A terminal of any branch of a network; or a terminal common to two or more branches of a network. Orderwire - A circuit used by operating personnel to coordinate the establishment, operation, maintenance, and control of communication facilities. Payload - The spacecraft communications package. Phase Shift Keying (PSK) - A method of modulation in which the carrier is varied in relation to a reference phase or the phase of the previous signal. Polarization - The process of making radiation vary over time in direction and amplitude. The variation is perpendicular to the ray in a definite form. Pulse-code Modulation (PCM) - The form of modulation which sequentially samples, quantizes, and codes a modulated signal into a binary form for transmission over J-4

ORIGINAL

ANNEX J TO NTP 2 SECTION 2(E) a digital link.

Random Noise - Noise consisting of a large number of transient disturbances with a statistically random time distribution. Satellite Constellation - The satellites in a common orbit used by a SATCOM system. SHF Band - The super high frequency band between 3 and 30 GHz. Sidelobe - A portion of the beam from an antenna, other than the main lobe. It is usually much smaller than the main lobe. Solar Array - A group of interconnected solar cells that convert solar energy directly into electrical energy. Spin-stabilization - A method of partially stabilizing a cylindrical-form satellite by imparting a spin of approximately 60 revolutions per minute (rpm) along the major axis. Spread Spectrum Modulation - A communication and modulation technique that makes use of sequential noiselike signals to spread the normal narrowband information over a relatively wide band of frequencies to protect against jamming. Stationkeeping - The process of keeping a satellite in its assigned orbital location. Submarine Satellite Information Exchange Subsystem (SSIXS) - SSIXS is a shore-ship, ship-shore, and shipship satellite circuit for record communications traffic. The shore net control terminal originates a five-minute broadcast every half hour to all assigned submarines in a given satellite's footprint. During the non-broadcast interval net control monitors the same channels for spontaneous submarine transmissions. Synchronous Data Network - A data network in which special characters synchronize the transfer of data from one network station to another. Telemetry - The process of satellite status information. J-5

reading

and

recording

ORIGINAL

ANNEX J TO NTP 2 SECTION 2(E) Telemetry, Tracking, and Command (TT&C) - TT&C is the method of determining the operational status of a satellite, maintaining the satellite on station, and controlling the configuration and operating levels of the satellite. Tracking - The process of maintaining the position and range information of a satellite to aid in sustaining the satellites orbital position. Transponder - A device that automatically receives, amplifies, and retransmits a signal on a different frequency. Ultra High Frequency (UHF) - The frequency band extending from 300 to 3,000 MHz (or 3 GHz). The U.S. Navy UHF SATCOM utilizes 225 to 400 MHz, the upper portion of the very high frequency (VHF) band and the lower portion of the UHF band. Up-converter - A device which translates frequencies so that the output frequencies are higher than the input frequencies. Uplink - The transmitted link carrying information from an earth terminal to a satellite. VERDIN - A digital data, multichannel communications system operating in the VLF range from shore to deployed submarines. VERDIN permits transmission of up to four 50 baud channels from an individual transmitter using time division multiplexing. X-band - The radio frequency band between 5.2 to 10.9 GHz.

J-6

ORIGINAL

INDEX TO NTP 2 SECTION 2(E) ABCS . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-5 AFSATCOM . . . . . . . . . . . . . . . 1-5, 1-6, 2-16, 2-17, 4-4 AUTODIN . . . . . . . . . . . . . . 2-34, 2-36, C-3, D-4, F-2, F-4 BCA . . . . . . . . . . . . . . . . . . . . . 2-36, 2-37, F-1, F-2 BCS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-5 CCOW . . . . . . . . . . . . . . . . . . . . . . . . . E-8, E-10 Command and Control (C2) . . . . . . . . . . . . . . . . . . 2-2 Command, Control, Communications, Computers and Intelligence (C4I) . . . . . . . . . . . . . . . . . . . 1-6 Command/Organizations CJCS/JCS . . . 1-1, 1-2, 1-3, 1-5, 1-6, 1-8, 1-9, 3-1, 3-2 3-3, 4-2, 4-4, 4-9, 4-11, 5-1 COMNAVCOMTELCOM 1-4, 3-3, 3-4, 4-1 to 4-3, 4-5, 4-11, 4-13, H-11, H-12, H-14, H-18 COMSAT . . . . . . . . . . . . . 1-5, 2-13, 2-15, 2-17, 3-7 COMSPAWARSYSCOM . . . . . . . . . . . . . . . . 4-2, H-18 CMC . . . . . . . . . . . . . . . . . . . . . . . 1-3, 3-4 CNO . . . . . . . . . . . 1-3, 3-2 to 3-4, 4-1 to 4-3, 4-5 DISA . . . . . . . . . . . . . . . . . . . . 1-2, 1-3, 1-8 HCSI . . . . . . . . . . . . . . . . . . . . . . . . . 3-7 JCSC . . . . . . . . . . . . . . . . . . . . . . . . . 5-1 Navy UHF SATCOM Control Activities . . . . . . . . . . 3-4 NCTAMS . . 1-4, 2-36, 2-42, 3-3, 3-4, 3-6, 4-14, A-6, B-4, D-1, D-2, H-7 to H-12, H-14, H-18 USCINCSPACE . . . . . . . . . . . . . . 1-2, 3-1, 3-2, 3-4 COMMPLAN . . . . . . . . . . . . . . . . . . . . . . . . 1-4, 1-8 COMMSHIFT . . . . . . . . . . . . . . . . . . . . . . . . . . C-5 COMSPOT . . . . . . . . . . . . . . . . . . . 5-2, 5-3, C-4, H-11 Copernicus Architecture . . . . . . . . . . . . . . 1-6, 1-7, 2-45 CSS . . . . . . . . . . . . . . . . . . 1-7, 1-8, 2-41, 2-45, E-10 DAMA . . . . . 2-22, 2-23, 2-36, 2-37, 2-39, 2-42, 2-44 to 2-47, 4-3, 5-4, B-4, C-3, D-1, D-2, D-11, D-13 to D-15, E-1 to E-5, E-8 to E-12 DPSK . . . . . . . . . . . . . . . . . . . . . . . . . 2-25, 2-48 EAM . . . . . . . . . EMCON . . . . . . . . Equipment AM-6534 . . . AN/FSC-79 . . AN/FYK-29 . . AN/FYK-33 . . AN/PSC-3 . . . AN/SSR-1 . . . AN/SYQ-7 . . . AN/TSC-96(V) . AN/UGC-77 . . AN/UGC-136 . . AN/UGC-143(V) AN/URC-100 . . AN/URC-110 . . AN/USH-22 . . AN/USH-23(V) . AN/USH-26 . . AN/USQ-64 . . AN/USQ-69 . .

. . . . . . . . . 1-5, 2-16, 2-17, A-4, A-5 . . . . . . . . . . . . . . . . . C-5, D-12 . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . .

INDEX-1

. . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . .

. . . . . . . . 2-26 2-21, 3-6, A-5, A-6 . . . . . . . . 2-46 . . . . . 2-46, F-4 . . 2-27, 4-3 to 4-5 . . . . . 2-28, A-4 . . . . . . 5-4, 5-5 . . . . . 2-25, 2-26 . . . . . 2-26, 2-50 . . . . . . . . 2-50 . . . . . . . . 2-51 . . . . . 2-26, 2-27 . . . . . 2-26, 2-27 . . . . . 2-49, D-2 . . . . . 2-50, D-2 . . 2-26, 2-49, D-2 . . . . . . . . 5-4 . . . . . 2-49, D-2

ORIGINAL

INDEX TO NTP 2 SECTION 2(E) AN/UYK-44 . . . AN/VSC-7 . . . . AN/WSC-3(V) . . AN/WSC-5(V) . . Andrew 58622 . . ANDVT . . . . . AS-2815 . . . . HR9NP . . . . . LST-5B/C . . . . OM-43A/USC . . . ON-143(V) . . . ON-163A/FR . . . RD-397(V)/U . . RP-357/FSQ . . . TACO . . . . . . TD-1150/USC . . TD-1271B/U . . . TD-1389(V)4/TSC TT-624(V) . . .

. . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . .

FIST Fleet Satellite Broadcast . Frequency FSK . . . FTOC . . FTP . . .

Division Multiple . . . . . . . . . . . . . . . . . . . . . . . . . . .

High Speed Fleet Broadcast

. . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . .

. . . . . . . . . 2-22, . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . 2-46, 2-47 . . . . . 2-26 . . 2-23, 5-3 2-31, A-5, E-1 . . 2-32, 3-34 . . 2-37, 4-3 . . . . . 2-26 . . . . . 2-32 . . . . . 2-28 . . 2-48, A-5 . . 2-45, 2-46 . . . . . 2-48 . . 2-26, 2-50 . . 2-50, F-4 . . . . . 2-33 . . . . . 2-47 2-47, E-1, E-3 . . . . . A-4 . . 2-26, D-2 2-38, 5-5, E-11 . . . . . 2-5, 2-12, 2-21, 2-28, 2-34, 2-36, 2-47, 2-48, A-1 to A-6, C-1 Access . . . . . . . . . . . . . 2-16 . . . . . . . . . . . . . . . . . 2-25 . . 4-1, D-11, H-6 to H-9, H-12, H-14 . . . . . . . . . . . . . . . . . 1-9 . . . . . . . . . . . . . . . . . 2-41

IFSM . . . . . . . . . . . . . . . . . . . . . . 2-39, 4-9, 4-10 IMMIS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1 Information Exchange Systems/Subsystems CUDIXS . . 2-35, 2-42, 2-45, 2-46, 5-4, C-1, C-2, C-5, E-12 GLOBIXS . . . . . . . . . . . . . . . . . . . . . . . 1-7 NAVMACS 2-35, 2-40, 2-45, 2-48, 2-50, 2-51, 5-5, A-5, C-1 NAVMACS II . . . . . . . . . . . . . . . . . . . . . . 2-40 OTCIXS . . . . . . . 2-34, 2-35, 2-44, B-1, B-3, B-7, H-15 SSIXS . . . . . . . . . . . . 2-36, 2-37, 2-46, F-1 to F-5 TACINTEL . . 2-36, 2-40, 2-41, 2-45, 2-50, A-5, D-1 to D-3, D-5 to D-7, D-9, D-10, D-12, D-15, E-11 TADIXS . . . 1-7, 2-35, 2-42, 2-46, 5-5, B-2, B-4, B-5, H-1 TADIXS A . . . . . . . . . 2-35, 2-42, 2-46, B-2, B-4, B-5 ISDB . . . . . . . . . . . . . . . . . . 1-8, 3-1, 4-5, 5-1, 5-2 MILSATCOM . . . . . . . . . . . . . . . . 1-1, 1-8, 3-2, 5-1, 5-2 MPDS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-46 MSO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-4 NATO Terminals . . . . . . . . . . . . . . . . . . . . . . . 2-19 NAVCOMPARS . . . 2-34 to 2-36, A-1, A-3, A-4, A-6, C-1, C-3, F-4 OTH-T . . . . . . . . . 2-34, 2-35, 2-42, 2-45, B-1, B-2, D-1, F-2 Power Calibration . . . . . . . . . . . . . . . . . . . 4-9, 4-10 PQS . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5, 5-6 PSK . . . . . . . . . . . . . . . . . . . . 2-22, 2-25, 2-27, 2-28

INDEX-2

ORIGINAL

INDEX TO NTP 2 SECTION 2(E) RCCOW . . . . . . . . . . . . . . . . . . . . . . . . . E-8, E-10 RDT&E . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2, 4-8 RFI . . . . . . . . . . . . . . . . . 2-39, 2-40, 4-11, 4-13, E-9 Satellites FLTSAT . . GAPFILLER INMARSAT . LEASAT . .

. . . . . . . . 3-6, LES . . . . . NATO IV . . . UHF Follow-on SECVOX . . . . . . . SI

. . . . . . . . .

SID . . . . . . SIOP . . . . . Spread Spectrum SRWI . . . . . Streamliner . . TACSAT . TDM . . . TRAINING TRE . . . TT&C . . UHF Access

. . . . .

. . . . .

. . . . .

. . . . .

. . . . 2-1 to 2-6, 3-9, 4-6, 4-10, H-4, H-8 . . . . . . . . 1-1, 2-14 to 2-16, 3-1, 3-2 . . . . . . . . . . . . . . . . . 2-17, 2-18 1-5, 2-1, 2-6, 2-7, 2-9 to 2-11, 2-17, 3-2, 3-10, 4-3 to 4-5, 4-9, 4-10, 4-12, H-4, H-15 . . . . . . . . . . . . . . . . . . . . 1-5 . . . . . . . . . . . . . . . . . 2-18, 2-19 . . . . . . . . . . . . . . . . . . . . 3-8 . . . 2-24, 2-35, 2-36, 2-37, 2-45, 4-3, 4-4 4-5, C-3, E-9, E-11, G-5, H-3, H-20 . 2-34, 2-36, 2-41, A-1, A-4, A-5, D-1, D-4, D-6, D-10, D-11, D-15, F-3 . . . . 2-35, 2-36, B-3, B-6, B-7, C-4, D-12 . . . . . . . . . . . . . . . 1-5, 2-16, 4-8 . . . . . . . . . 2-21, 2-42, 2-48, A-1, A-4 . . . . . . . . . . . . . . . . . . . . 2-37 . 2-34, A-1, A-3, A-4, D-2, D-4, D-10, D-11

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-21, 2-34, 2-36, 2-47, A-3, A-5, D-7, . . . . . . 1-3, 1-5, 2-20, 2-25, 3-8, 4-8, 5-2 to . . . 2-38, 2-40, 2-45, 2-46, 5-5, H-1, H-2, H-5, 2-2, 2-6, 2-8, 2-12, 2-14, 2-18, 2-20, 3-5 to 3-8,

1-5 D-8 5-5 H-6 4-8

. . . . . . . . . . . . . . . . . . . . . . . . .

5-1

VERDIN . . . . . . . . . . . . . . . . . . . . . . . . 2-37, F-2 VLF . . . . . . . . . . . . . . . . . . . . . 2-36, 2-37, F-1, F-2 VME . . . . . . . . . . . . . . . . . . . . . . 2-40 to 2-42, 2-45

INDEX-3

ORIGINAL

NTP 2 SECTION 2(E) LIST OF EFFECTIVE PAGES Subject Matter

Page Numbers

Change In Effect

Title Page

I (Reverse Blank)

Original

Foreword

III (Reverse Blank)

Original

Letter of Promulgation dated 1 July 1992

V (Reverse Blank)

Original

Record of Changes and Corrections

VII

Original

Table of Contents

IX to XIII (Reverse Blank)

Original

Chapter 1

1-1 to 1-9 (Reverse Blank)

Original

Chapter 2

2-1 to 2-63 (Reverse Blank)

Original

Chapter 3

3-1 to 3-11 (Reverse Blank)

Original

Chapter 4

4-1 to 4-14

Original

Chapter 5

5-1 to 5-6

Original

Annex A

A-1 to A-7

Original

Annex B

B-1 to B-7 (Reverse Blank)

Original

Annex C

C-1 to C-7 (Reverse Blank)

Original

Annex D*

D-1 to

Original

Annex E

E-1 to E-13

Original

Annex F

F-1 to F-5 (Reverse Blank)

Original

Annex G

G-1 to G-6 (Reverse Blank)

Original

Annex H*

H-1 to H-21 (Reverse Blank)

Original

Annex I

I-1 to I-10 (Reverse Blank)

Original

Annex J

J-1 to J-6

Original

Index

Index-1 to Index-4

Original

List of Effective Pages

LEP-1 (Reverse Blank)

Original

Feedback Report

Unnumbered

Original

TEXT

*

D-15 (Reverse Blank)

Classified Annex

LEP-1

ORIGINAL

NTP 2 SECTION 2(E) NTP 2 SECTION 2 (E) RESPONSE TO QUESTIONS/ CHANGES NOT INCORPORATED ITEM 1.

PAGE 1-5

REMARKS Paragraph 104.b: The AFSATCOM space segment description mentions transponders installed on FLTSAT/LEASAT but does not describe their composition. To illustrate the information desired, a description such as 25 kHz wideband and 5 kHz narrowband channels was suggested. Rationale: Composition of AFSATCOM transponder packages aboard FLTSAT/LEASAT were included. However, the actual transponder composition consists of 500 kHz and 5 kHz channels vice the 25 kHz channels suggested.

2.

2-1 and 2-13

Paragraph 202.d.(1): The effective Isotropic Radiated Power (EIRP) description contained only downlink information. Rationale: Specific EIRP requirements were eliminated from this paragraph in order to maintain consistency with preceding satellite characteristics descriptions. EIRP values are contained in Table 2-1.

3.

2-33

Paragraph 206.a: "SHF" added to the Fleet Broadcast Subsystem title was suggested as a refinement. Rationale: To avoid possible confusion or misleading the reader, "SHF" was omitted from the subsystem title.

4.

General question: The question was posed as to whether a DAMA annex was planned for the document. Rationale: A DAMA annex is incorporated in the document as Annex D.

ITEM

PAGE

5.

2-35

REMARKS Paragraph 206.g: difference between SSIXS SSIXS II was questioned.

The and

Rationale: SSIXS II refers to a major upgrade received by SSIXS shore support sites. Equipment installed aboard fleet submarines has not changed and remains the initial SSIXS equipment suite. The paragraph was rewritten to accentuate this difference. Annex F provides a detailed explanation of SSIXS II. 6.

2-40

Paragraph 207.d.(2): The definite bandwidth conservation resulting from the integration of CUDIXS into DAMA was questioned. Rationale: The integration of CUDIXS/NAVMACS II into the DAMA system will result in bandwidth conservation.

7.

2-44

Paragraph 207 h: Clarification was requested on the timeframe for fielding TRE production models using the VME open system architecture. Rationale: The VME open system architecture has already been incorporated into TRE field production models. The contract to field TRE models using this architecture is in place.

8.

2-45

Paragraph 208.d: In the discussion of baseband equipment, both a basic AN/FYQ29 and a AN/FYQ-29A version were identified. Verification was requested on the AN/FYQ29A. Rationale: The basic AN/FYQ-29 is the particular baseband equipment supporting SSIXS II. The reference to AN/FYQ-29A was eliminated.

9.

3-2

Paragraph 303.c: Verification of the inclusion of UHF in the MILSATCOM system architecture, planning, and engineering was requested.

ITEM

PAGE

REMARKS Rationale: UHF is included in the MILSATCOM system architecture, planning, and engineering. However, the paragraph containing this information and describing the Defense Information Systems Agency was deleted from this chapter since this information appears in chapter 1.

10.

3-5

Paragraph 304.a: The location of Navy personnel supporting the U.S. Air Force Consolidated Space Test center was questioned. Rationale: As verified by COMNAVSPACECOM, a small Navy detachment (1 officer/several enlisted) supports the Consolidated Space Test Center and is stationed at Onizuka AFB, California.

11.

3-7

Paragraph 305, Table 3-2: Verification of the status of frequency plan Bravo on channel 1 of the FSC-4 satellite was requested. Rationale: Frequency plan Bravo on channel 1 of the FSC-4 satellite is on.

12.

4-9

Paragraph 403.h: Verification of the CUDIXS restoral priority was requested. Rationale: The current CUDIXS restoral priority is 3E. This information was verified by NCTAMS LANT/NAVCOMMDET Norfolk, VA.

13.

5-1

Paragraph 503: Verification of the Joint Communications Satellite Center Office code J6Z for ISDB submission action was requested. Rationale: correct.

Code

J6Z

is

CLASSIFICATION

COMMUNICATIONS PROCEDURES FEEDBACK REPORT Date From:

To:

Commander, Naval Computer and Telecommuniations Command (Code N321) 4401 Massachusetts Avenue, N.W. Washington, D.C. 20394-5000

Subj: Communications Procedures Feedback Report Publication: Paragraph No.: Other:

Problem Area: Typographical

General

New Procedures

Other

Obsolete

Inadequate

Conflicting Comments:

CLASSIFICATION