Comms payload passes on-orbit tests on MUOS satellite

The legacy communications payload onboard the Lockheed Martin-built Mobile User Objective System (MUOS-1) satellite has passed all on-orbit tests, said Boeing officials on July 24. The Chicago-based defense contractor built the MUOS payload.

MUOS-1 was launched on Feb. 24 from Cape Canaveral Air Force Station, Fla., on an Atlas V launch vehicle. It is the first of five satellites being built by MUOS prime contractor Lockheed Martin, which subcontracted with Boeing in 2004 to build, test and deliver the legacy ultra-high-frequency (UHF) communications payload, the officials said.

The UHF payload enables the Navy to use existing UHF ground- and space-based communications systems, extending the utility of the system with an affordable and proven communications payload, the officials said.
 
The UHF radio frequency, which is not blocked by jungle foliage, inclement weather or urban terrain, meets a critical requirement for warfighters, the officials said.

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