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National Stock Number:
6625-15-194-1057
Federal Supply Class:
6625
National Item Identification Number:
151941057
Description:
METER,NOISE LEVEL
Detail:
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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Manufacturer Information:
| (241)A3120QS/72-031 | | QS/72-031 | A3120 | 3M ITALIANA SPA |
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