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|  TM 11-5820-401-34-3/0967-LP-432-3060
3-4.
NEW SQUELCH TEST. (CONT)
CONTROL AND SWITCH SETTINGS (CONT)
POSITION/SETTING
CONTROL OR SWITCH
EQUIPMENT
BAND
R-442/VRC
MC-TUNE-KC
30.00
NEW ON
SQUELCH
VOLUME
Fully counterclockwise
POWER
ON
LIGHT
ON
ON
AUX POWER
MK-1978/VRC
MUTED
AUDIO
RCVE
KEY
NORMAL
X-MODE (RT)
NORMAL
AUX RCVR
ON
SQUELCH
OPERATE
OPERATE/OFF/STAND BY
AN/URM-103
BAND SWITCH
30.00
RF TUNING
10
DEVIATION RANGE KHZ
150 Hz
FUNCTION
Adjust for 3-kHz meter indication
DEVIATION
To red line
RF SET TO LINE
LO, 0-10 KUV
RF OUTPUT
Minimum setting
LO RF UV
TEST PROCEDURE
NEW SQUELCH Test at 30.00 MHz
1. Adjust AN/URM-103 RF TUNING control for 30.00-MHz display on AN/USM-207.
NOTE
To produce a display on the AN/USM-207, the ANLJRM-103 rf level must be increased
by turning the LO RF UV control clockwise. When the display appears, readjust the
AN/URM-103 RF TUNING control until the AN/USM-207 indicates 30.00 MHz, and reset
the LO RF UV control to minimum setting.
2. Disconnect T-connector from AN/USM-207.
3. If necessary, readjust AN/URM-103 DEVIATION control for 3-kHz meter indication.
4. Turn AN/URM-103 LO RF UV control slowly clockwise until R-442/VRC CALL lamp lights.
STANDARD. R-442/VRC CALL lamp should light while the AN/U RM-103 LO RF UV control setting is
at or below 0.5 v.
3-10
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