modulation meter

modulation meter

[‚mäj·ə′lā·shən ‚mēd·ər]
(engineering)
Instrument for measuring the degree of modulation (modulation factor) of a modulated wave train, usually expressed in percent.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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A VXI modulation meter was introduced by Boonton Electronics Corp., along with a digital sampling RF power meter.
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Because of the combination of precision, dynamic range and wide frequency bandwidth, the 9640A can be used to calibrate spectrum analyzers, modulation meters and analyzers, RF power meters and sensors, measurement receivers, and frequency counters, and attenuators.
Calibration source spans 10 Hz to 4 GHz

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