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 4140-01-651-2024
NSN 6685-01-476-6989
NSN 6610-01-254-4196
NSN 6150-01-199-9087
NSN 5905-01-406-4127
NSN 5975-01-317-4372
NSN 5985-01-062-8735
NSN 5855-00-411-8688
NSN 5945-01-469-5917
NSN 6650-00-170-5095
NSN 6150-01-106-8675
NSN 6650-00-917-0436