External power source; solid state electronic circuit construction
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 5855-01-557-1798
NSN 6135-00-767-0331
NSN 5905-00-039-9530
NSN 5910-01-048-9194
NSN 5925-01-478-8718
NSN 5910-01-004-4104
NSN 6650-01-349-3503
NSN 5835-01-592-2350
NSN 5910-01-470-4074
NSN 5910-01-513-6221
NSN 6130-01-257-0942
NSN 5999-01-094-1002