Belar FMM-2

The Belar FMM-2 FM Modulation Monitor is an advanced and precise device designed for measuring the modulation characteristics of both monaural and multiplexed FM transmitters. Its capabilities extend to serving as a low-distortion, low-noise FM demodulator, essential for driving stereo and SCA monitors while providing audio outputs for monitoring and performance verification.

Key Features:

1. Ultra-linear Digital Discriminator:
   • Utilizes an advanced digital discriminator, ensuring ultra-linearity.
   • Produces an almost distortionless and perfectly flat baseband signal for precise stereo and SCA decoding.
2. Digitally Selectable Peak Indicator:
   • Allows for precise modulation peak measurements.
   • Adjustable in 1% increments from 1 to 199%.
   • Independent of modulation polarity for accurate response to program peaks.
3. Built-in Voltmeter:
   • Facilitates AM and FM noise measurements.
   • Enhances the device’s versatility for comprehensive signal analysis.
4. Carrier Alarm:
   • Features a front-panel indicator for quick identification of carrier issues.
   • Enhances monitoring capabilities for transmitter performance.
5. Two Wide-band Outputs:
   • Provides flexibility in signal routing and monitoring applications.
6. True Peak or Semi-peak Metering:
   • Incorporates both true peak and semi-peak metering for compliance with FCC regulations.
   • Ensures accurate measurement of signal peaks.
7. Separate Fixed 100% Modulation Indicator:
   • Offers a dedicated indicator for 100% modulation.
   • Aids in monitoring and maintaining optimal modulation levels.
8. High Visibility Rear-illuminated Meter:
   • Ensures easy readability in various lighting conditions.
   • Enhances user experience during monitoring and measurement tasks.

The Model FMM-2 sets new standards in accurate measurement techniques, combining innovative design features to deliver precise modulation analysis and decoding capabilities. It is a versatile tool for broadcasting professionals, providing the accuracy and reliability required for monitoring and maintaining FM transmitter performance.