MODEL 850 BTSC TV STEREO AURAL MODULATION ANALYZER
This menu-driven instrument will measure all critical BTSC stereo signal characteristics with the push of a button. Features include a built-in precision BTSC demodulator, True Peak Modulation Differentiation Circuitry, built-in calibration, RF (high level and low level), IF and Composite inputs.

Model 850 Datasheet (.pdf, 594KB)
Model 850 Family Options (.pdf 13KB)

MODEL 851 BTSC TV STEREO AURAL MODULATION ANALYZER
This menu-driven instrument will measure all critical BTSC stereo signal characteristics of a composite BTSC signal with the push of a button. Economical version of the 850 without RF preselector is used in conjunction with an external TV demodulator. It requires a BTSC composite signal at its input.

Model 850 Datasheet (.pdf, 594KB) (no Datasheet for 851)
Model 850 Family Options (.pdf 13KB)

MODEL 852 CABLE TV BTSC STEREO AURAL MODULATION ANALYZER
The 852 is a BTSC demodulator designed specifically for Cable TV applications. Measures channel separation, signal-to-noise ratio, modulation level, pilot injection level and frequency response on standard (EIA/NCTA, IS-6) HRC & IRC channels 2 through 70 and 95 through 99.

Model 852 Datasheet (.pdf, 593KB)
Model 850 Family Options (.pdf 13KB)

MODEL 855 PRO/SAP CHANNEL MODULATION MONITOR
The 855 is designed to monitor SAP and Pro Channel performance characteristics as defined by EIA/BTSC standards. Incorporates independent SAP and Pro Channel sections. Each includes separate peak modulation flashers and meters. Switchable modes permit extensive monitoring and flexible measurement.

Model 855 Datasheet (.pdf, 319KB)
Model 850 Family Options (.pdf 13KB)

MODEL 860 MULTI-FUNCTION AUDIO ANALYZER
This analyzer is a plug in module which mates with the 850 family of modulation monitors. Together they provide an essential, single package for monitoring and testing BTSC performance. Combines Distortion Analyzer, AC Level Voltmeter/Frequency meter, and Ratio Meter in one instrument.

Model 860 Datasheet (.pdf, 302KB)

MODEL 844A FM STEREO MODULATION MONITOR / ANALYZER
Complete stereo and Proof-of-Performance measurement capability in one unit. Dual channel, frequency agile preselector, multipath detector and indicator, built-in modulation calibrator, and alarm circuits. Continuous display on 3 analog meters of Total Modulation, Left/Test, and Right Channel. Option for RDS level indication.

Model 844A Datasheet (.pdf, 2.39MB) : Chinese
Radio Monitor Options (.pdf, 12KB)

MODEL 884 FM STEREO MODULATION MONITOR / ANALYZER
This single channel, frequency-agile unit has two analog meters with which to measure L+R, L-R, Pilot Injection, and Total Modulation. Complete FM Stereo measurement at an attractive price. Option for RDS level indication.

Model 884 Datasheet (.pdf, 1.3MB) : Chinese : Spanish
Radio Monitor Options (.pdf, 12KB)

MODEL 845 SCA MODULATION MONITOR
The 845 is designed to monitor up to three SCA frequencies, selectable from the front panel. A 67 kHz SCA channel and 75 microsecond de-emphasis circuit are supplied standard. Modulation calibration accuracy is better than 1%. Optional RF Preselector and dedicated service channels are available.

Model 845 Datasheet (.pdf, 270KB)
Radio Monitor Options (.pdf, 12KB)

MODEL 923A AM MODULATION MONITOR
The 923A AM Modulation Monitor/Analyzer with precision demodulator for accurate AM Proof-of-Performance measurements, 500 kHz - 40 MHz (high level) without tuning. Optional synthesized AM RF Preselector, 500 kHz - 1990 kHz for off-air monitoring.

Model 923A Datasheet (.pdf, 704KB) : Spanish
Radio Monitor Options (.pdf, 12KB)

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