Digital Modular Radio (DMR)

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

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

General Dynamics at AUSA 2017: Meeting the U.S. Army’s Needs Through Innovation

Oct, 03 2017
At the AUSA 2017 Annual Meeting & Exposition, General Dynamics is showcasing its investments in the next technologies, capabilities and platforms built to support the U.S. Army and U.S. allies across all domains. General Dynamics is focused on partnering with the Army to develop innovative solutions that ensure readiness for the future.

General Dynamics Introduces New HOOK3 Combat Survival Radio

Jul, 27 2017
The new HOOK3 radios are significantly smaller and lighter than the Hook2 radio and activate automatically in extreme G-Force and salt water environments.

General Dynamics Delivers 10,000th Air Traffic Control Radio to Federal Aviation Administration and U.S. Department of Defense

Jun, 23 2017
SCOTTSDALE, Ariz. – General Dynamics Mission Systems radio products team delivered the 10,000th CM-300/350 VHF-UHF V2 radio, providing advanced, network-ready, ground-to-air communications to the U.S. Department of Transportation Federal Aviation Administration (FAA) as part of the NEXCOM 2 modernization program.

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

Aug, 04 2016
SCOTTSDALE, Ariz., — 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, The 3G High-frequency 3rd Generation Automatic Link Establishment (ALE) increases transmission rates from…

General Dynamics Delivers New Digital Manpack Radios for U.S. Army Testing

May, 25 2016
Based on the Army's tested, fielded AN/PRC-155 Manpack, General Dynamics digital Manpack radios are MUOS capable. SCOTTSDALE, Ariz., — General Dynamics Mission Systems delivered 30 new two-channel Manpack networking radios to the U.S. Army for evaluation. The digital radios are the…

General Dynamics Delivers 5000TH NEXCOM Segment 2 Radio to FAA

May, 24 2016
SCOTTSDALE, Ariz., — General Dynamics Mission Systems delivered the 5,000th CM-300/350 VHF-UHF V2 radio, providing advanced, network-ready ground-to-air communications for the U.S. Department of Transportation's Federal Aviation Administration's (FAA) NEXCOM 2 modernization…
More News


Digital Modular Radio (DMR) Datasheet



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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