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 5930-01-449-0937
NSN 5920-01-127-5300
NSN 6110-00-100-4775
NSN 5998-00-463-4463
NSN 5998-01-597-9832
NSN 5925-01-088-6587
NSN 5835-00-411-0591
NSN 6645-00-160-0503
NSN 5935-01-446-6206
NSN 6220-00-262-7863
NSN 5835-01-528-7454
NSN 4140-00-938-2011