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 2925-00-735-4979
NSN 5960-01-654-4353
NSN 6620-00-172-9222
NSN 5999-01-203-6688
NSN 6645-00-218-6354
NSN 6105-00-096-2555
NSN 5945-01-503-0423
NSN 6220-01-236-7825
NSN 6620-01-448-8926
NSN 5975-01-459-8649
NSN 5910-01-449-1359
NSN 6320-01-420-0340