Mobile User Objective System

MUOS is designed to support users who require greater mobility, higher bit rates and improved operational availability.

MUOS primarily serves the United States Department of Defense (DoD); although, international allies' use has been declined in the past.

[4] Lockheed Martin Space is the prime system contractor and satellite designer for MUOS under U.S. Navy Contract N00039-04-C-2009, which was announced on 24 September 2004.

[5][6] Key subcontractors include General Dynamics Mission Systems (Ground Transport architecture), Boeing (Legacy UFO and portions of the WCDMA payload) and Harris (deployable mesh reflectors).

MUOS WCDMA radios can transmit simultaneous voice, video and mission data on an Internet Protocol-based system connected to military networks.

The MUOS operates as a global cellular service provider to support the warfighter with modern cell phone-like capabilities, such as multimedia.

[3] Site selections were completed in 2007 with the signing of a Memorandum of Agreement (MOA) between the U.S. Navy and the Australian Department of Defence.

Construction of the ground station in Italy was halted for nearly half of 2012 by protesters concerned with health risks and environmental damage by radio waves.

One scientific study "point[s] to serious risks to people and the environment, such as to prevent its realization in densely populated areas, like the one adjacent to the town of Niscemi".

The JTRS Handheld, Manpack and Small Form Fit (HMS) AN/PRC-155 manpack built by General Dynamics Mission Systems survived the wider JTRS program cancellation and has shipped several low rate of initial production (LRIP) units.

Lockheed Martin and an industry team of radio vendors demonstrated extensive Arctic communications reach near the North Pole, believed to be the most northerly successful call to a geosynchronous satellite.