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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 6645-01-416-6267
NSN 6240-00-235-5159
NSN 5855-01-366-2429
NSN 5855-01-430-0132
NSN 5985-01-140-9829
NSN 5920-00-417-4624
NSN 6240-01-268-6591
NSN 4140-00-205-6491
NSN 5945-01-566-0471
NSN 5975-00-285-8003
NSN 5925-01-627-5810
NSN 5895-00-993-1583