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 6620-01-212-1417
NSN 6130-01-633-2447
NSN 5930-00-875-1947
NSN 5945-01-347-6413
NSN 5855-01-383-6860
NSN 6220-00-905-1488
NSN 5935-01-161-5864
NSN 5895-00-843-5418
NSN 6685-00-126-8559
NSN 6150-01-167-6836
NSN 5998-01-578-6686
NSN 5945-01-538-2400