An instrument which measures the level of continuous noise present in amplifier and/or receiver circuits with reference to a fixed level of signal generated by a separate noise source. It is designed to measure noise levels over a wide band of frequencies including radio and video frequencies, and is normally calibrated in decibels relative to a specified r.M.S. Voltage summation across a specified impedance, or in decibels relative to a specified noise power level. if only audio frequency range, see meter, audio level.
Classification: Instruments and apparatus without a recording device specially designed for telecommunications, nesoi
NSN 6320-00-270-8222
NSN 5985-01-254-1181
NSN 6150-00-446-7206
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NSN 5999-00-406-1325
NSN 5915-01-503-4246
NSN 4140-00-054-6467
NSN 4140-00-064-7283
NSN 6645-00-145-6411
NSN 5835-00-554-0399
NSN 6130-01-422-1638