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. Sample Checklist, 25-kHz DAMA. Table III-4. Checklist for 25-kHz DAMA ITEM OPTIONS Service Type � AC � DC Modulation � PSK Encryption � ANDVT � 3KG-84 � 4KG-84 � VINSON � External Mode � Voice � Data Data Rate � 75 � 300 � 600 � 1200 � 2400 � 4800 � 16000 � 32000 � 56000 � 64000 Transmit Power 23 to 43 dBm Channel Number 009 to 128, 192, 193 _________________ Configuration Code 01 to 99 (Use code assigned in SAA) Orderwire Encryption � PT � CT Operation Mode � Normal � EMCON Ranging � Active � Passive � (Maint) Satellite ID 1 to 8 Satellite Ephemeris Terminal Position Longitude: ___° (0° to 180°) Ascension time: ___:__ Zulu Inclination: ______° (0° to 10°) Latitude: N/S _____° (0° to 90°) Longitude: E/W _____° (0° to 180°) Terminal Time ___:__ Zulu Terminal Address ________ (00000 to 65535) Guard List Up to 15 five-digit addresses COMSEC Key 1 to 6 Orderwire Key 1 to 4 Call Precedence � EA � FO � F � I � P � R Five-digit addresses Destination __________ __________ __________ __________ __________ Circuit Number 000 to 999 (DC mode only) 6. Accessing a Dedicated Channel a. A dedicated channel is a 5-kHz or 25-kHz satellite channel (uplink and downlink frequency pair on a transponder) supporting a single communications network for a designated period of time. III-9
. User requirements— (1) Azimuth and elevation to satellite. (2) Home channel/frequency pair/uplink and offset. (See Appendix A to verify home channel number based on frequency pair.) (3) COMSEC type, mode of operations, and data rate. 7. Accessing a DAMA Channel a. Description—DAMA (called “demand assignment multiple access in the MIL- STDs- is also correct) is a method of automated channel-sharing (multiplexing). User terminals automatically interact with a control station, which allocates a portion of a satellite channel for that terminal’s communications. Channel allocation is based on current needs and priorities. Any unused DAMA resource is available on a precedence basis and is shared by all users. The ad hoc nature of DAMA limits the waste caused by long-term preassigned satellite resources. Channel-sharing is transparent to the TACSAT user. Since there are two types of UHF satellite channels, 5-kHz and 25-kHz, there are two types of DAMA. b. User requirements— (1) Azimuth and elevation to satellite. (2) Home channel/frequency pair/uplink and offset. (See Appendix A to verify home channel number based on frequency pair.) (3) COMSEC type, mode of operations, and data rate. (4) OW key and position. (5) Type of channel—5-kHz or 25-kHz. (6) Configuration code. (7) Type of communications—normal, silent, EMCON. (8) TBAs with assigned maximum precedence and net guard addresses. (9) Demarcation number for 5-kHz DAMA. (10) Type of ranging. (11) Types of services (a) 5-kHz—message, circuit, or DASA. (b) 25-kHz—two-party or conference calls. c. Fundamentals of DAMA operations— (1) Acquiring the satellite. All terminals must be able to receive and decrypt OWs transmitted by the DAMA controllers. Unless this is accomplished by the individual terminal, access to the satellite channel is not obtained. The OWs include the information required to decrypt messages. Common problems are using the wrong OW key and placing the OW key in the wrong position. (2) Ranging. For terminals to transmit in the proper time-slot, the radios must have range reaching the satellite. Active ranging may be performed by the terminal. It III-10
Page 1 and 2: UHF TACSAT /DAMA MULTI-SERVICE TACT
Page 3 and 4: 1. Scope PREFACE The intent of this
Page 5 and 6: c. We encourage recommended changes
Page 7 and 8: Acquire Resources .................
Page 9 and 10: TABLES Figure III-5. AN/WSC-3 .....
Page 11 and 12: EXECUTIVE SUMMARY UHF TACSAT/DAMA M
Page 13 and 14: 1. Introduction Chapter I Overview/
Page 15 and 16: Figure I-1. UHF SATCOM Functional O
Page 17 and 18: elationship is not clearly defined.
Page 19 and 20: . Use a logical process for communi
Page 21 and 22: communications planner determines w
Page 23 and 24: Figure I-4. Long-Range (50 to 150 k
Page 25 and 26: I-13 Figure I-6. Military UHF Satel
Page 27 and 28: (a) A shared time-slot dedicated to
Page 29 and 30: sent at that time and the number of
Page 31 and 32: Figure I-10. A Segment Slots I-19
Page 33 and 34: Figure I-12. C Segment Slots e. The
Page 35 and 36: i. For TDMA DAMA, the time-slots wi
Page 37 and 38: Figure I-16. Communications on 25-k
Page 39 and 40: . Voice. (1) Bandwidth (25-kHz or 5
Page 41 and 42: This reduces the number of time-slo
Page 43 and 44: Radio Item AN/PRC-117F III-2 Table
Page 45 and 46: III-4 d. AN/ARC-231. (See Appendix
Page 47 and 48: III-6 i. USC-42(V)1, 2, 3 (mini-DAM
Page 49: III-8 Table III-2. OW Key Positions
Page 53 and 54: (6) Logging out. (a) For 5-kHz DAMA
Page 55 and 56: Spectrum Manager MARFORLANT; MARFOR
Page 57 and 58: Appendix A SATELLITE CHANNEL AUTHOR
Page 59 and 60: Table A-1. Satellite Channel (Home
Page 61 and 62: Table A-1. Satellite Channel (Home
Page 63 and 64: Appendix B Information Request Code
Page 65 and 66: Table B-1. Information Request Code
Page 71 and 72: Table B-2. Configuration Codes Conf
Page 73 and 74: C-2 Option Table C-2. MIL-STD 188-1
Page 75 and 76: C-4 Table C-4. UHF SATCOM Programmi
Page 77 and 78: pointing using the SATCOM receive s
Page 79 and 80: 5. AN/PSC-117F DAMA UHF SATCOM a. U
Page 81 and 82: C-10 Table C-7. DAMA Programming Ch
Page 83 and 84: C-12 Table C-8. DAMA Net Preset Par
Page 85 and 86: C-14 Figure C-6. DAMA Port Configur
Page 87 and 88: C-16 Figure C-7. DAMA Destination P
Page 89 and 90: h. Passive ranging and ephemeris da
Page 91 and 92: (c) Select the destination to be ca
Page 93 and 94: • ACTIVE—Service request has be
Page 95 and 96: q. Terminate 25-kHz AC DAMA calls o
Page 97 and 98: communications. Slower data rate li
Page 99 and 100: (d) Select the desired DAMA net by
Page 101 and 102:
completion of the communications. P
Page 103 and 104:
C-32 Figure C-12. MSG Service Call
Page 105 and 106:
C-34 Figure C-14. DAMA Service Stat
Page 107 and 108:
1. Line of Sight (LOS) Operations A
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k. Enter channel number (009 to 239
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GUARD LIST VIEW 1 64000 ------ ----
Page 113 and 114:
(13) For DASA only, enter time requ
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Message Action A Acquisition Failed
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Message Action Aborted To:xxxx (Rea
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Table D-7. Hot Keys, 5-kHz DAMA Key
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(9) Enter configuration code, if re
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(1) Select over-the-air, if the ter
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25-kHz AD HOC DAMA SETUP GUIDE - AN
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5C/D RADIOS 1. The following are re
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Table D-8. 5-kHz DAMA Operations (S
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Table D-8. 5-kHz DAMA Operations (S
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E-2 d. Programming operating modes.
Page 135 and 136:
(12) After pushing the variable pos
Page 137 and 138:
d. radio. Prior to COLD START, pres
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aa. INTKG should flash. Leave as is
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1. Skyfire Operator Training Append
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The following message appears- F-2
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F-4 CI MENU LOAD PRESETS LOADING PR
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STEP 2. Rotate selector control kno
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(1) On = Activates guard receiver.
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1. Setting Up for DAMA Appendix G A
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(1) Enter *92 then depress the Ente
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Appendix H EMI CHARACTERIZATION CHE
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Appendix J CUT SHEETS The following
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DAMA Database Set up Presets Mode P
Page 161 and 162:
Appendix K Prioritization Scheme Ta
Page 163 and 164:
References Joint CJCSM 3122.01, Joi
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COCOM combatant command COMM commer
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IO Indian Ocean IP internet protoco
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P PAC Pacific PCC primary channel c
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USARPAC United States Army, Pacific
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attitude can be measured by the ang
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channel control orderwire channel c
Page 177 and 178:
participate in a class broadcast fr
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data stream into burst-formatted da
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low power satellite A satellite wit
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preamble Consists of a carrier segm
Page 185 and 186:
permit them to escape from the Sun
Page 187 and 188:
waveform The combination of baseban
Page 189 and 190:
COMSEC custodians, III-7 connection
Page 191 and 192:
DAMA, I-7, III-6, C-20 point-to-poi
Page 193 and 194:
data, I-24 data rate, I-24 disadvan
Page 195:
MARINE CORPS: PCN 144 00003 80 PIN:
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