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 5835-00-660-4523
NSN 5910-01-452-0710
NSN 5999-01-380-6175
NSN 5985-01-474-5650
NSN 5855-00-631-4565
NSN 6105-00-275-0826
NSN 5975-01-440-9989
NSN 2925-01-656-8217
NSN 5945-00-617-2866
NSN 5975-00-465-9507
NSN 5975-00-541-8531
NSN 5990-01-184-2550