631 Professional FM Relay Receiver

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Inovonics’ Model 631 is our second generation of frequency-agile, digitally tuned receivers for FM translator and other critical off-air reception applications. Featuring menu-driven access of display and function selections, the 631 provides a switchable IF bandwidth to help solve difficult adjacent-signal problems and readouts of signal strength and multipath distortion to aid antenna alignment. Selectable options and alarms may be remotely controlled or monitored, and high-resolution bargraph readouts give accurate indications of incoming RF and MPX/stereo audio levels.


  • Easy to set-up and use
  • Selectable wide/narrow IF bandwidth
  • Composite/MPX and balanced L/R stereo outputs
  • LCD Display
  • Menu-driven selection of functions and readouts
  • High-resolution bargraph displays indicate:
    • MPX and audio levels
    • Total carrier modulation
    • Left/Right audio levels
    • Incoming RF
    • Multipath distortion
  • Digitally-tuned
  • Carrier-loss and audio-loss alarms