URC-300 Transceiver

Maximized RF Performance - Redefining Software Defined

The new software-defined URC-300® Transceiver improves ground-to-air communications with an architecture that enables users to upgrade fielded radios as new technology becomes available. The URC-300 retains a familiar user-friendly interface from the URC-200 (V2) as well as many of the legacy accessories.

The URC-300 was recently selected by the FAA for their emergency air traffic control communications.

Significant RF performance over the URC-200 (V2) for clearer communications during close-proximity operations


Customizable, software-defined platform enables future field-upgradeable enhancements

Remote Control Unit and VoIP Gateway Adapter for long-distance operation over IP Networks

General Dynamics to Provide FAA with Emergency Backup Radios

The Federal Aviation Administration (FAA) has chosen General Dynamics to provide URC-300E® transceivers for their Emergency Transceiver Replacement (ETR) program. The radio will provide Very High Frequency (VHF) and Ultra High Frequency (UHF) operation for air traffic control communications in the event of a catastrophic failure.


User-Friendly Features

See It In Action

Highly Versatile & Easy To Use

The URC-300® transceiver is a brand new, software-based, customizable platform that improves ground-to-air communications and enables future enhancements.

  • VHF and UHF AM capability provides interoperability with many RF systems 
  • Ideal for rapid deployment grab-and-go, rackmount, and vehicular applications
  • Redesigned front panel with glove-friendly, easy-to-use interface

Web-based provisioning tool for maintainers


  • UHF/VHF AM Voice; ETSE EN 300 676-1 compliant for both 8.33 and 25 kHz
  • UHF/VHF FM Voice with optional 30-90 MHz frequency band extension
  • Separate DC input powers radio and charges battery
  • Built-in power conditioning replaces external filter accessories
  • Smaller size and less weight than the URC-200 (V2); ideal for emergency grab-and-go
  • Side-by-side radios fit into a 19” rack for rackmount applications
  • Redesigned user interface with large, user-friendly display
  • Built-in web server for maintainer configuration and monitoring 


Future, Field-Upgradeable Enhancements

  • Additional accessories for vehicular, shipboard, backpack and rackmount applications
  • Cipher text (data)
  • Frequency agile cosite filter
  • Adaptive Noise Reduction (ANR)


Additional Certifications

  • CE / RoHS / REACH / Radio Equipment Directive 
  • NSN 5820-01-695-9351
  • J/F 12: 13243



  • Two-channel Remote Control Unit
  • ED-137 VoIP Gateway Adapter
  • 50W power amplifier 
  • Additional accessories for vehicular, shipboard, backpack and rackmount applications 
  • Optional accessories to power from AC or DC source



URC-300  Transceiver Datasheet



View Document



Frequency range

VHF: 115 MHz to 150.000 MHz
VHF: 115 MHz to 173.995 MHz (Future FM)
UHF: 225 MHz to 399.995 MHz (AM and FM)
LVHF: 30 MHz to 90 MHz (FM)

Tuning increments 25 kHz, 12.5 kHz, 5 kHz and 8.33 kHz
Channel spacing 25 kHz, 8.33 kH, ETSI EN 300 676-1 compliant
Frequency stability <± 1 PPM
Remote Control
SNMP V3 command / control BIT
Preset channels 20 channel presets: Independently programmable transmit and receive

Receiver Characteristics


AM Voice: -103 dBm
FM Voice: -114 dBm 
Receiver dynamic range: 118 dB

Receiver dynamic range

118 dB

Cross modulation
≥ 80 dB
Audio noise (S+N/N)
≥ 40 dB
Image response
≥ 80 dB
Spurious response
≥ 70 dB ( ≥ 80 dB typical)
Squelch range
Operator adjustable from below sensitivity to above -80 dBm
Adjacent channel rejection
25 kHz: ≥ 60 dB; 8.33 KHz: ≥ 60 dB
FM broadcast intermod immunity
≥ 95 dB (applies to AM channels only)

Transmitter Characteristics

Output power
1W to 7W (CW) user adjustable in 0.2W steps
10W avg ± 1 dB @ 90% AM
FM: 1 to 10 Watts user adjustable in 0.2 Watt steps
AM Modulation
0 - 95% user adjustable

AM: 4% (1-2 % typical)

FM: 6.5% (3.5 % typical)

Spurious output
< -85 dB
Harmonic output
< -75 dB
Adjacent channel power
25 kHz: ≤ 60 dB
8.33 kHz: ≤ 50 dB

Physical Characteristics

10.9 lbs. (radio only)
11.1” L x 8.4” W x 3.4”H
(radio without handles)
Ruggedized, environmentally tested for humidity, vibration, shock/drop, rain/drip-proof,
temperature and altitude. Complies with sections of MIL-STD-810H and is rated IP65 for
ingress protection
-25˚C to +55˚C (operating)
-40˚C to +70˚C (non operating)

Power Supply

BB-2590 (rechargeable)
108 – 253 VAC, 47 – 63 Hz
10.7 – 34 VDC
Battery case dimensions
5.2” L x 7.3” W x 2.8” H
Current drain (+28 VDC)
Transmit < 2.5 amps
Receive < 360 mA



ACG Systems

As a Value Added Reseller, ACG Systems supports sales and provides technical customer service and installation services for the CM-300/350 V2 radio in the U.S. ACG Systems provides industry and government with operationally effective, cost efficient, unifying communication solutions. ACG integrates, distributes, and supports leading brands of digital and analog communication equipment in support of major national and regional airlines, federal government agencies, airport authorities and other related industries. Our product line includes radios covering most frequency bands, consoles, switches, digital recorders and radio communications systems–including a number of ACG designed and branded products.

Learn More


ADS Inc.

ADS Inc. is an official Value Added Reseller of the CM-300/350 V2 Air Traffic Control Radio. ADS, Inc. provides equipment, procurement, logistics, and supply chain solutions. We offer access to the largest product and service selection, the broadest array of procurement and contract options, and world-class expertise and support to assist all branches of the U.S. Military, federal, state and local government organizations, law enforcement agencies, first responders, partner nations, and the defense industry.

Learn More


Carroll Communications

Carroll Communications is an official Value Added Reseller of the CM-300/350 V2 Air Traffic Control Radio. Headquartered in Columbus County, NC, Carroll Communications is a U.S.-based veteran-owned small business that supports sales for the CM-300/350 V2 radio in the U.S.

Learn More


Robinson Aviation (RVA)

Robinson Aviation (RVA), Inc. specializes in air traffic control operations; ramp tower operations; engineering, installation, and maintenance of communications, airport navigation, landing, and weather systems; and, aviation safety and Communication, Navigation, and Surveillance/Air Traffic Management (CNS/ATM) studies. As a Value Added Reseller, RVA supports sales and provides technical customer service and installation services for the CM-300/350 V2 radio in the U.S.

Learn More


Customer Support

For customer support, service and technical questions within the U.S. or to request electronic manuals, guides and important safety information, please contact us at:

1-888-803-0065  (Toll-Free)

Outside the USA, dial the ATT Direct number for the country where you are located. When prompted, enter 888-803-0065 


Software Updates

URC-300 Transceiver Software Update Version V1.1.0 Now Available (gdmissionsystems.com)

URC-300 Transceiver Software Update Version V1.2.0 Now Available (gdmissionsystems.com)

Additional Product Information

For additional product information, please contact us at URC300info@gd-ms.com.



General Dynamics to Provide FAA with Radios for Backup Emergency Air Traffic Control Communications

March 4, 2021

The Federal Aviation Administration (FAA) has chosen General Dynamics Mission Systems to provide new URC-300E transceivers as part of their Emergency Transceiver Replacement (ETR) program. The URC-300E will replace current legacy radios and provide both Very High Frequency (VHF) and Ultra High Frequency (UHF) operation for civil and military air traffic control (ATC) communications in the event of a catastrophic failure, such as a facility fire or natural disaster.

General Dynamics Introduces New URC-300 Software-Defined Ground-to-Air Radio

October 26, 2020

General Dynamics will deliver URC-300 transceiver backpack systems in February to the U.S. Air Force’s Radar, Airfield and Weather Systems team at Kadena Air Base in Japan to improve ground-to-air communications at their alternate air traffic control tower and contingency field operations. The URC-300 is specifically designed to enable future features and functions to be added in the field via quick and simple software upgrades.

New URC-300 Radio Now 25kHz and 8.33kHz ETSI Compliant for Global Operation

October 08, 2020

General Dynamics is pleased to announce that its new URC-300™ radio has completed European Telecommunications Standards Institute (ETSI) European Standard (EN) 300 676 testing and is now in full compliance with all 25kHz and 8.33kHz VHF specifications. In addition, the URC-300 recently completed the ETSI EN 302 617 UHF testing and is also compliant with 25kHz UHF specifications.

In The News: URC-300, A Rugged and Flexible Communications Solution

August 27, 2020

The new URC-300 software defined radio (SDR) is a ruggedized, versatile platform that provides line-of-sight, two-way VHF and UHF communications for a variety of applications. The radio’s exceptional radio frequency (RF) performance supports demanding Air Traffic Control (ATC) applications and other critical missions. It’s a versatile platform, with a suite of accessories for grab-and-go scenarios, vehicular installations, rack mount installations, and deployed missions to austere and challenging environments. The transceiver radio supports two-way point-to-point RF communications and is capable of supporting multiple waveforms.