Mobile User Objective System



MUOS-2 Launch from Cape Canaveral Air Force Station, Fla.

July 19, 2013


View MUOS-2 Launch


MUOS will provide military users
10 times more communications
capacity over existing system

From Sea to Space 

MUOS is the next generation narrowband military satellite communication system that supports a worldwide, multi-Service population of users in the ultra-high frequency band. The system provides increased communications capabilities to newer, smaller terminals while still supporting interoperability with legacy terminals. MUOS is designed to support users that require greater mobility, higher data rates and improved operational availability.


MUOS implementation is well underway following the successful launch of MUOS-1 in February 2012 and its acceptance for full operational use for legacy terminal users in November 2012.


MUOS adapts a commercial 3G Wideband Code Division Multiple Access (WCDMA) cellular technology with geosynchronous satellites to provide a new and more capable UHF military satellite communication system.


The MUOS program includes a satellite constellation of four operational satellites plus one on-orbit spare, a ground control and network management system and the new WCDMA waveform for user terminals. The infrastructure to both fly the satellites and control access of user communications is managed from the ground.


MUOS will provide greater than 10 times the communications capacity compared to the current UHF constellation.


Below you will find MUOS video links, imagery and related coverage.



Dish Lift at Naval Radio Transmitter Facility, Niscemi, Sicily (January 2014) 


Satellite dishes are installed at the MUOS ground site at NRTF Niscemi. MUOS ground stations relay voice and high-speed data signals for mobile users worldwide. Three other MUOS ground stations in Chesapeake, Va., Wahiawa, Hawaii and Geraldton, Australia are operational.


MUOS-2 Launch (July 19, 2013) 


A United Launch Alliance Atlas V rocket lifts off from Space Launch Complex-41 with the Navy's MUOS-2 satellite. Photos courtesy of United Launch Alliance.


MUOS-2 Roll-Out (July 17, 2013)


In preparation for launch, a United Launch Alliance Atlas V rocket carrying the Navy's MUOS-2 satellite is transported from the Vertical Integration Facility to the launch pad at Space Launch Complex-41. Photos courtesy of United Launch Alliance.


MUOS-2 Testing Completed
(Jan. 16, 2013)

Prior to entering storage, the Navy’s second MUOS satellite is paced through a series of rigorous tests to ensure its performance and health throughout its on-orbit life. Photo courtesy of Lockheed Martin.



MUOS-2 Delivery to Cape Canaveral
(May 13, 2013)

A team from Lockheed Martin and Travis Air Force Base loads the second MUOS satellite onto a C-5 transport aircraft for delivery to Cape Canaveral Air Force Station, Fla. Photo courtesy of Lockheed Martin.

MUOS-2 Encapsulation
(June 27, 2013)


The second MUOS satellite is encapsulated into its payload fairing. It is scheduled to launch July 19 aboard a United Launch Alliance Atlas V launch vehicle. Photos courtesy of Lockheed Martin.

MUOS-2 Encapsulation
(June 27, 2013)

The second MUOS  satellite, complete with Navy logo, is encapsulated into its payload fairing. (U.S. Navy photo by
Army Lt. Col. Rodger Pitt/released).


Coast Guard Testing MUOS Aboard Cutter Healy During Arctic Shield 2014 (Aug. 14)


MUOS-3 Factsheet (August 2014)


Defense Acquisitions: Assessment of Selected Weapon Programs (MUOS Analysis)
Government Accountability Office
March 2014, Report GAO-14-340SP


Independent Analysis of MUOS Radio Frequency Safety
Johns Hopkins University Applied Physics Laboratory


 MUOS Overview Powerpoint December 2013


MUOS-2 Situation Report: July 31, 2013


Navy Satellite Launch to Boost DoD Communications
Navy News Service
July 19, 2013


MUOS Satellite Improves Communications for U.S. Forces on the Move
By Vice Adm. Michael S. Rogers, U.S. Fleet Cyber Command / U.S. Tenth Fleet
Navy Live Blog
July 18, 2013


Director, Operational Test and Evaluation
Annual Report: Mobile User Objective System 
December 2012

First MUOS Satellite Accepted for
Operational Use
Navy News Service
Nov. 21, 2012

Navy Successfully Launches Next Generation Communications Satellite
Navy News Service
Feb. 25
, 2012

 MUOS-2 Mission Overview Booklet

Click here to veiw


PEO Space

Updated: 9/2/2014 12:14 PM EST   Published (2.0)