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 6105-01-649-0966
NSN 5920-01-492-5535
NSN 5920-00-264-5671
NSN 5930-00-339-3024
NSN 6620-00-996-8026
NSN 5990-00-589-7610
NSN 5975-00-138-6786
NSN 5855-01-443-8441
NSN 6645-00-155-2398
NSN 5985-01-076-7044
NSN 6135-01-435-8451
NSN 5935-00-227-1110