The Belar Model TVM-100 Precision Aural Monitor is a wide-band TV aural modulation monitor designed to measure the total modulation characteristics of mono as well as multi-channel television transmitters.
The TVM-100 is also used as a low-distortion, low-noise main channel demodulator for driving audio monitor amplifiers and audio distortion analyzers. Wide band composite outputs are provided for Stereo, SAP, PRO and SCA monitors.
Designed to conform with the latest EIA/BTSC recommendations, the TVM-100 features a highly accurate digital modulation calibrator for mono and stereo modes. Built-in AM and FM noise measurement capability allows direct measurement of signal-to-noise ratio as well as noise due to transmitter ICPM.
FEATURES
Split sound and quasi-parallel detection modes
Built-in high-accuracy digital deviation calibrator for mono and multi-channel modes
Digital display that indicates actual deviation in kHz, with 100 Hz resolution
Digitally selectable peak indicator, adjustable in 1% increments from 1% to 199% modulation, independent of modulation polarity
Semi-peak and SAMPLE/HOLD peak metering characteristics
Measurement of SAP & PRO injection levels directly in kHz deviation (with optional board)