The NHRC-4/M2 is a version of our popular NHRC-4 Repeater Controller that plugs in to the GE MASTR II.

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• Plugs in inside a General Electric MASTR II mobile with no complicated wiring. Fits in Base Stations, too!
• Secondary port can be remote base, link radio or slaved duplex repeater.
• "Intelligent" ID algorithm.
• A single connector interfaces a CommSpec TS-64 (not supplied) for full CTCSS encode and decode on the primary (MASTR II) port.
• Distinctive Courtesy Tones can indicate channel activity:
  • primary receiver courtesy tone.
  • primary receiver courtesy tone, secondary port transmit enabled.
  • secondary receiver courtesy tone.
  • secondary receiver courtesy tone, secondary port transmit enabled.
  • primary receiver courtesy tone, secondary receiver active, alert mode selected.
• 1 Digital output:
  • Fan control (runs when transmitter on and n minutes after).
  • On/Off/Pulse commands.
  • Open-collector output.
• Touch-Tone remote control and programming.
• Hang timer, ID timer, Timeout timers, Fan Timer, and CW messages stored in non-volatile memory.
• Individual audio gating on each port allows use of non-squelched receiver audio.
• LED CAS, PTT, and DTMF indicators for primary port.
  CAS and PTT indicators for secondary port.
• Both ports support optional NHRC-DAD digital audio delay for squelch tail elimination/reduction and total muting of DTMF.
• Extremely low power consumption.

Version 3.0 Manuals

• NHRC-4 Operating Manual (~150KB)
• NHRC-4/M2 Installation and Setup Guide (~145KB)

Prior Versions Manuals

• Installing the NHRC-4/M2 (rev A boards)
• Installing the NHRC-4/M2 (rev B boards)
• Operating the NHRC-4/M2
• NHRC-4 Series Repeater Controllers Programming Information Generator
• NHRC-4/M2 Repeater Controller Complete Manual & Schematics (280K) (for rev. B. boards only.)
• NHRC-4/M2 TS-64 Application Note (12K) (for rev. B. boards only.)

• NHRC-VSQ Internal Volume/Squelch Controls for MASTR II
• NHRC-DAD-2 Digital Audio Delay

NHRC-4/M2	Integrated Linking Repeater Controller for GE MASTR II Mobiles and Base Stations.	$189.00
NHRC-4 Version 3.0 Upgrade	Includes new microcontroller IC and printed documentation	$29.00
Shipping & Handling		See Shipping Info