Communications Systems An/wsc-3 Parts

(Page 5) End item NSN parts page 5 of 7
Part Number
NSN
NIIN
1-246-764-00 Composition Fixed Resistor
001970221
1-246-765-00 Composition Fixed Resistor
004661216
1-246-767-00 Film Fixed Resistor
011975921
1-246-854-00 Composition Fixed Resistor
004017430
1-4-5P39E Film Fixed Resistor
011582316
1-4M2-4AZ Diode Semiconductor Device
011263009
10-00073-055 Nonwire Wound Variable Resistor
005525490
10-00277-019 Composition Fixed Resistor
001311256
10-00366-038 Composition Fixed Resistor
001970221
10-00366-039 Composition Fixed Resistor
004661216
10-00366-047 Composition Fixed Resistor
002323110
10-00366-055 Composition Fixed Resistor
004092975
10-00366-056 Composition Fixed Resistor
001970220
10-00368-108 Nonwire Wound Variable Resistor
005942642
100104 Buzzer
009126310
100109-8107.04 Electrical Receptacle Connector
008079308
100412 Diode Semiconductor Device
007526115
1005572 Electrolytic Fixed Capacitor
012778529
10087238 Electromagnetic Relay
011891874
101-0820 Composition Fixed Resistor
004092975
Page: 5

Communications Systems An/wsc-3

Picture of Communications Systems An/wsc-3

Space Network (SN) is a NASA program that combines space and ground elements to support spacecraft communications in Earth vicinity. The SN Project Office at Goddard Space Flight Center (GSFC) manages the SN, which consists of:

Tracking and Data Relay Satellite (TDRS) currently consists of first generation (F1-F7), and second generation (F8-F10) satellites.

The space segment of the SN consists of up to six operational relay satellites in geosynchronous orbit. These communications satellites are allocated longitudes for relaying forward and return service signals to and from customers, any entity with an Earth-orbiting satellite that has an agreement with SN to use its communications services, for data transfer and tracking. An additional TDRS, F1, provides dedicated support to the National Science Foundation (NSF) through the use of the WSC Alternate Relay Terminal (WART). Additional spare TDRSs may be in geosynchronous orbit.

All first generation TDRSs (F1-F7, also known as TDRS A-G) carry functionally identical payloads and all second generation TDRSs (F8-F10, also known as TDRS H-J) carry functionally identical payloads.

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