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Defense Satellite Communications System
By Editor | September 26, 2007
Military users rely heavily on the Defense Satellite Communications System (DSCS), which provides military communciations for the Department of Defense and it’s military communications requirements.
The Defense Satellite Communications System provides high bandwidth, secure voice and data communications through a constellation of satellites that are located in a geosynchronous orbit.
The Defesnse Satellite Communications System has went through three phases of development and is currently in the third phase at this time.
The first stage for the Defense Satellite Communications System was called the IDSCS (Initial Defense Satellite Communications System). This program was started in 1966 with a constellation of 8 satellites. This particular phase of the program was used during the Vietnam War to transmit reconnaissance information and data.
Phase 2 of the Defense Satellite Communications System provided secure communications for the military and made improvements to the satellites by making changes the stabilization of the spin and antenna platform. There were also improvements made to the solar cells, batteries and propulsion systems. The payload of the satellite contained (2) 20 watt X-band channels and the transponders where supported by steerable narrow beam antennas.
Phase 3 or DSCS III continued to improve on the stabilization of the spacecraft, solar arrays and sensors. S-band support was also added during phase 3. The payload was increased to (6) SHF channels with full earth coverage as well as narrow coverage.
Topics: Defense Satellite Communications Systems, Military Satellite Communications |
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