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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 6130-01-429-0880
NSN 6610-00-155-1334
NSN 5965-01-341-4036
NSN 4140-01-417-5404
NSN 5905-01-148-8534
NSN 5910-00-637-2609
NSN 5990-01-100-1840
NSN 6240-01-139-3377
NSN 5925-01-399-6777
NSN 6220-00-754-3452
NSN 6130-00-528-1266
NSN 5990-01-267-3590