Belar FMM-2

The Belar Model FMM-2 FM Modulation Monitor is a precision wideband, all solid state FM monitor, designed to measure the total modulation characteristics of monaural as well as multiplexed FM transmitters. The Model FMM-2 is also used as a low distortion and low noise FM demodulator to drive the companion stereo and SCA monitors, as well as providing audio outputs for aural monitoring and proof of performance measurements.

The Model FMM-2 has set new standards in totally accurate measurement techniques. Utilizing such advanced design features as an ultra-linear digital discriminator, an almost distortionless and absolutely flat baseband signal is produced to ensure precise stereo and SCA decoding.

In addition to the normal FCC defined semi-peak metering, the FMM-2 incorporates a sample-hold peak modulation meter circuit, independent of modulation polarity, to allow the meter to respond accurately to program peaks.

We try to have plenty of inventory available to satisfy our customer's needs, however Due to the recent supply chain situation. We suggest you verify by contacting us Availability before placing your order online.



  • Ultra-linear digital discriminator
  • Digitally selectable peak indicator, adjustable in 1% increments from 1 to 199%, independent of modulation polarity
  • Built-in voltmeter for AM and FM noise measurements
  • Carrier alarm with front panel indicator
  • Two wide-band outputs
  • True peak or semi-peak metering
  • Separate fixed 100% modulation indicator
  • High visibility rear-illuminated meter