The rapid technological advancements, like three-axis stability, and a need for hardened, nuclear command and control satellites, spurred development of DSCS III
in the late 70s.
The DSCS III
, first launched in 1982, remains the workhorse of the U.S.
Force level for carriers and multipurpose amphibious assault ships and group level for cruisers and guided missile destroyers accessed the Defense Satellite Communications System with the AN/WSC-6 SATCOM terminal to a DSCS III
Service Life Extension Program (SLEP) satellite that operated strictly in the X-band portion of the RF spectrum, for at most a T1 (1.544 megabytes per second (Mbps) to E1 (2.048 Mbps) data rate.
The DSCS III
satellites have a design life of 10-years, however, the team's ability to manage and maximize fuel usage allowed the satellites to exceed their design life by several years.
Ka-STARS will greatly increase both available single user data rate and total satellite capacity over today's DSCS III
satellites and future Wideband Gapfiller System satellites while focusing support to warfighting forces.
It's a fine artist's rendition of a DSCS III
satellite, not of a GPS or any navigation satellite!
The Defense Satellite Communications System III (DSCS III
) satellites transmit and receive through SHF multiple beam antennas (MBA) with programmable beam forming networks (BFN).
Four days later, after what was widely reported to be the deployment of two DSCS III
communications satellites for the Defense Department, the craft landed safely at California's Edwards Air Force Base.
This system, linked directly into the theater missile defense architecture by DSCS III
wideband satellite communication links, is vital in providing our forces protection from enemy theater ballistic missiles.