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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 6610-01-458-3119
NSN 6220-01-422-2585
NSN 6240-00-923-8944
NSN 6610-01-168-7943
NSN 6220-01-374-2235
NSN 5905-00-787-9586
NSN 5855-01-228-0942
NSN 6320-01-422-1212
NSN 5920-01-516-5989
NSN 5975-01-422-3463
NSN 6110-00-014-8160
NSN 6145-00-512-6675