American aerospace and defence company General Dynamics Mission Systems has secured a $731.8m contract from the US Navy for the ground system sustainment of the Mobile User Objective System (MUOS).

MUOS is a next-generation satellite communications system that provides secure voice and data communications for US forces worldwide.

The system consists of an array of geosynchronous satellites that will provide global satellite communications (SATCOM) narrowband connectivity for use by the US at data rates of up to 384kbit/s.

Five satellites, four ground stations, as well as a terrestrial transport network will be delivered under the programme.

The system provides increased communications capabilities to newer, smaller terminals while enhancing interoperability with legacy terminals. It supports users who require greater mobility, higher bit rates and improved operational availability.

MUOS, which will replace the legacy UHF Follow-On (UFO) system, will provide new capabilities and greater mobility, access, capacity, and quality of service.

General Dynamics Mission Systems provides the integrated ground segments for MUOS, which will provide secure mobile phone-like communications for ships on the move.

General Dynamics Mission Systems space and intelligence systems vice-president and general manager Manny Mora said: “MUOS will provide our warfighters with the ability to communicate securely, anywhere, anytime, with voice clarity and data transmission speed similar to using a civilian cell phone.

“This capability delivers a whole new level of connectivity for troops in the field.”

MUOS was recently deemed operationally effective and cyber survivable following the completion of its Multiservice Operational Test and Evaluation (MOT&E).

The US Army and the US Marine Corps also participated in MOT&E, which was conducted by the US Navy’s Commander, Operational Test and Evaluation Force.

Most of the MUOS work under the indefinite-delivery, indefinite-quantity contract will be completed in Scottsdale, Arizona, with completion expected by November 2029.

General Dynamics Mission Systems is a business unit of General Dynamics.