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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 6135-01-317-6021
NSN 5925-01-342-2302
NSN 6650-00-494-1000
NSN 5930-00-508-5944
NSN 5975-01-076-2584
NSN 2925-00-896-9819
NSN 5996-00-972-3097
NSN 5965-01-504-8199
NSN 6135-01-307-6006
NSN 6150-01-373-4025
NSN 5998-01-012-2134
NSN 7035-01-384-4383