Part Number
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.
CAGE Information
| Code | Company |
|---|---|
| 89875 | DEFENSE LOGISTICS AGENCY DIRECTORATE |
Federal Supply Class
Title
ELECTRICAL AND ELECTRONIC PROPER
Inclusions:
INCLUDES TEST LEADS AND TEST LEAD ATTACHMENTS; TEST INSTRUMENTS DESIGNED FOR COMMUNICATION EQUIPMENT; TEST INSTRUMENTS DESIGNED FOR USE WITH ELECTRONIC EQUIPMENT CLASSIFIED IN TWO OR MORE FSC GROUPS.
Exclusions:
EXCLUDES RADIAC EQUIPMENT
Characteristics (Decoded)
| MRC | Requirements Statement | Clear Text Reply |
|---|---|---|
| FEAT | SPECIAL FEATURES | SIZE: 2.75 IN. BY 7.6 IN. BY 1.0 IN.; IMPULSE INTEGRATING SOUND LEVEL METER; 5 OPERATING MODES; LARGE LIQUID CRYSTAL DISPLAY; DURABLE METAL HOUSING; SLIDE SWITCHES; WIDE 70 DB RANGE IS SELECTABLE BETWEEN LOW (30-100DB) AND HIGH SETTINGS (70-140 DB); OVERRANGE AND UNDERRANGE WARNINGS INDICATE WHEN A CHANGE FROM ONE SETTING TO THE OTHER IS RECOMMENDED FOR MORE ACCURATE READINGS; MULTIPLE OUTPUT JACKS; PORTABLE DESIGN; LIGHTWEIGHT; COMPACT; MICROPHONE; FIELD REPLACEABLE, 0.5 IN. PRE-POLARIZED CONDENSER, EXTENDS 1.5 IN. |
| SUPP | SUPPLEMENTARY FEATURES | TYPE 2 ACCURACY; QC-10 SOUND LEVEL CALIBRATOR IS A GENERAL PURPOSE CALIBRATOR THAT GENERATES A CONSTANT SOUND PRESSURE LEVEL OF 114 DB AT A FIXED FREQUENCY OF 1,000 HZ |