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H6 - Federal Item Name Directory
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48206
METER,NOISE LEVEL
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FIIG: A310A0
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Entry Date: Jun-12-1992
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Concept:
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Status: A
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Applicability: B
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Type: 0
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Definition: 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.
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Corresponding NIINs: 48
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