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 6320-01-455-3394
NSN 6620-00-248-6950
NSN 6105-00-035-4909
NSN 6685-01-496-9994
NSN 6320-01-094-2634
NSN 2925-00-233-5644
NSN 6130-01-116-2100
NSN 2925-01-086-5507
NSN 5905-01-646-2158
NSN 6220-01-409-1585
NSN 5996-00-683-5176
NSN 6650-00-847-3492