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Digital Modular Radio (DMR)

General Dynamics Digital Modular Radio (DMR)
DMR Radio
USS George H.W. Bush sailor inside ultra high frequency work center
DMR_photo_option 3

Software-Defined Communications For The U.S. Navy

The AN/USC-61 (C) Digital Modular Radio (DMR) is the first software defined radio to become a communications system standard for the U.S. Military. The DMR provides multiple waveforms and multi-level information security for voice and data communications. The DMR is currently deployed on 12 different U.S. Navy ship and submarine platforms.

  • Four full-duplex channels
  • HF, VHF, UHF, SATCOM and MUOS waveform capability
  • Programmable Type 1 MILS certification
  • Full qualification for U.S. Navy shipboard environment and Coalition Interoperable
  • VIDEO: Expanding the boundaries with the DMR

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Product Details

DMR Today

Digital Modular Radios currently operate aboard U.S. Navy surface and subsurface vessels, fixed-sites and other Department of Defense communication platforms using frequencies ranging from 2 MHz to 2 GHz. Certified to pass secure voice and data at Multiple Independent Levels of Security (MILS) over HF, VHF, UHF, and SATCOM channels, the DMR system was developed to the U.S. Navy’s specifications and meets all the stringent environmental, EMI and performance requirements for use in the U.S. Fleet and five eye countries. DMR is certified by the Joint Interoperability Test Command (JITC) to be compliant with the U.S. government’s MIL-STD-188- 181B/182A/183A requirements for UHF SATCOM.

Next-Generation Communications Capability
Built using open architecture standards, General Dynamics’ Digital Modular Radios continue to provide improved functionality and interoperability while setting the stage to incorporate next-generation communications, including forthcoming waveforms and advanced network connectivity, such as the Integrated Waveform and advanced network connectivity with the Mobile User Objective System (MUOS) waveforms.

  • Single radio for the entire 2 MHz – 2 GHz band
    • Lower spares cost and inventory
    • Single depot and common logistic
    • Common operations and maintenance training
    • Common manuals
    • Single point of control
    • Low life-cycle costs
  • Dramatically simplified shipboard communications system architecture
    • Embedded Type 1 Encryption
    • Embedded red/black baseband switching and routing
  • Superior co-site performance
  • Reduced manpower requirements
    • Single point of control for entire HF/VHF/UHF/SATCOM system
    • High reliability
    • Built-In Test (BIT)
  • Full logistical support in the U.S. Navy system

Digital Modular Radio (DMR) Datasheet

View Document

Frequency Range 2 MHz – 2 GHz, contiguous
Size 17.5”W x 19.25”H x 22”D (EIA-310-D Clearance) (44.45 x 48.90 x 55.9 cm)
Input Power 100 - 140 VAC, (47 - 63 Hz)
Operating Temperature 0° to 55° C
Vibration MIL-STD-167
Shock M-S-901
EMI MIL-STD-461, and MIL-STD-1399



General Dynamics to Deliver Advanced HF Communications Capability for U.S. Navy Digital Modular Radio

August 4, 2016

The U.S. Navy awarded a contract modification to General Dynamics Mission Systems to improve high-frequency (HF) communications for the Navy’s four-channel, AN/USC-61(C) Digital Modular Radios (DMR).

General Dynamics DMR Radios Ordered for New U.S. Navy Surface Vessels and Submarines

May 19, 2016

The U.S. Navy awarded a contract modification to General Dynamics Mission Systems to build and deliver more than 30 new AN/USC-61(C) Digital Modular Radios (DMR), along with related materials and equipment for new Navy surface vessels and submarines.

General Dynamics-built Digital Modular Radios Connect with Army PRC-155 Manpack Radio in MUOS Test Lab

March 23, 2016

The General Dynamics Mission Systems-built four-channel Digital Modular Radios (DMR) successfully completed a Mobile User Objective System (MUOS) satellite communications test at the General Dynamics MUOS test facility in Scottsdale, Ariz.

Digital Modular Radios by General Dynamics Quadruples U.S. Navy Network Communications Capacity with New Software

February 4, 2015

General Dynamics’ four-channel Digital Modular Radios (DMR) are being upgraded with high-frequency dynamic routing (HFDR) software to turn the radio’s four channels into eight virtual channels.

General Dynamics to Port Advanced Communications Waveforms onto U.S. Navy Digital Modular Radios

December 18, 2012

General Dynamics C4 Systems received a contract modification in December 2012 from the U.S. Navy to port the Mobile User Objective System (MUOS) waveform and the Integrated Waveform into the AN/USC-61(C) Digital Modular Radio (DMR).

Digital Modular Radios by General Dynamics Anchor Communications for New U.S. Navy Ships and Submarines

November 12, 2012

The U.S. Navy has ordered an additional 53 General Dynamics-built AN/USC-61(C) four-channel Digital Modular Radios (DMR) for use aboard new Navy ships, submarines and inshore sites.