Radius GR300 Repeater

Increase Your Communications Range

The compact GR300 Repeater increases the range and capabilities of your mobile or portable communications, solving special coverage problems quickly, easily and inexpensively. It provides flexibility to build a repeater which meets the frequency bands/power level requirements in a wide variety of applications.

  • Designed for Portability
  • Field Programmable
  • Remote Repeater Setup and Knockdown
  • Desktop Control Point Operation
  • Supports VHF/UHF/Crossband
  • Multiple Frequency Operation Available
  • Temperature Controlled Fan for Continuous Duty Cycle (25 Watts to Duplexer)
  • Time-Out Timer

Standard Repeater Model Includes:

  • Metal Enclosure with Temperature Controlled Fan
  • Repeater Interface Communications Kit (R.I.C.K.)
  • Power Supply with Switchable Primary Voltage
  • Complete Set of Cables to Facilitate All Interconnections

Complete Package Requires The Addition Of:

Alternatives To The Standard Configuration:

  • ZR310 Multiple Tone Panel
  • i50R Basic Telephone Interconnect
  • ZR320 Interconnect With Selective Calling
  • ZR330 Remote Telephone Interface


  • Tone Remote Adapter
  • DC Remote Adapter
  • Front and Back Protective Covers with Carrying Handle
  • C100 Deskset
  • Antenna Systems
  • Desk Microphone
  • Many GM300 Accessories

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Repeater Applications
  • Uni-Directional
    Allows standard repeater operation, using only one transmitter and one receiver.
    Application: Provides added range for portables on widespread construction sites.
  • Bi-Directional
    Allows two groups on different frequency pairs within the same frequency band to communicate.
    Application: Temporarily joins two separate groups such as Civil Defense and Fire for emergency relief.
  • Uni-Directional Crossband
    Allows radios on one frequency band to monitor transmissions from another.
    Application: Provides the capability to monitor frequencies such as weather or road condition channels.
  • Bi-Directional Crossband
    Allows two groups operating within different frequency bands to communicate.
    Application: Temporarily joins two groups that normally operate on different frequency bands, such as public works and police, for natural disaster situations.
Frequency Range:
Duty Cycle:

Power Supply (Primary
Input Voltage):
Radio Dependent
265 X 258 X190 mm (10.4" X 10.1" X 7.5")
34 lb.
Continuous Low Power 25W(to Duplexer)
Intermittent High Power 40/45W(to Duplexer)
120/240 50-60 Hz
Standard U.S. Three Prong Plug

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