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|  TM 11-5820-401-34-3/0967-LP-432-3060
4-7. RECEIVER AUDIO DISTORTION TEST. (CONT)
CONTROL AND SWITCH SETTINGS (CONT)
CONTROL OR SWITCH
EQUIPMENT
POSITION/SETTING
BAND
R-442/VRC
MC-TUNE-KC
64. 00
SQUELCH
OLD OFF
LIGHT
ON
VOLUME
Fully counterclockwise
POWER
ON
AN/GRM-114A;
See test setup diagram
MM-100E
TEST PROCEDURE
1. Connect MM-100E attenuated probe A to MK-1978/VRC SPKR jack; connect probe B to GND
jack. (See test setup diagram
2. Adjust R-442/VRC VOLUME control for 17-volt indication on MM-100E meter.
3. Change MM-100E RANGE switch to DIST 0-30%. If meter indicates less than 10 percent,
set RANGE switch to 0-10%.
4-18
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