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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 5920-01-551-8325
NSN 2925-01-445-4095
NSN 6320-00-070-4544
NSN 6110-00-574-5130
NSN 5998-01-188-7555
NSN 5950-01-596-5787
NSN 5910-01-486-0166
NSN 7035-01-602-0464
NSN 5925-00-226-1155
NSN 5996-01-477-1157
NSN 5945-01-469-6287
NSN 6220-00-166-9795