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 6320-01-457-9059
NSN 6135-01-026-9960
NSN 6130-01-495-7035
NSN 5925-01-163-2160
NSN 5905-00-179-9596
NSN 5855-00-151-3853
NSN 6645-00-192-1152
NSN 5835-00-564-0057
NSN 5960-01-570-8605
NSN 6240-00-398-0740
NSN 5915-01-210-2709
NSN 5945-00-456-0699