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|  TM 11-5820-401-34-3/0967-LP-432-3060
AUDIO AND SQUELCH PREAMPLIFIER A4300 ALINEMENT. (CONT)
3-21.
CONTROL AND SWITCH SETTINGS (CONT)
CONTROL OR SWITCH
EQUIPMENT
POSITION/SETTING
OPERATE/OFF/STAND BY
AN/URM-103
OPERATE (allow 15-minute warmup)
FUNCTION
1000 Hz
BAND SWITCH
RF TUNING
30.00
DEVIATION RANGE KHZ
10
RF OUTPUT
LO, 0-10 KUV
DEVIATION
Fully counterclockwise
RF SET TO LINE
Adjust until needle on IF UV RF SET TO LINE
meter is over red line
LO RF UV
20 v
POWER
TRACK
AN/USM-207
DISPLAY
MIN (fully counterclockwise)
SENSITIVITY
PLUG IN
FUNCTION
FREQ
103 (black knob)
GATE TIME
DIRECT/HETERODYNE
DIRECT
INPUT
0.3 V MAX (both switches to left)
FREQUENCY TUNING-MC
100
POWER
MK-1978/VRC
ON
NORMAL
AUX RCVR
AUDIO
MUTED
SQUELCH
ON
KEY
RCVE
ALINEMENT PROCEDURE
NOTE
30 MHz. The rf level must be increased temporarily to enable the frequency counter to
display. Adjust the AN/URM-103 RF TUNING control as necessary, reset to 20-v rf
level; then disconnect the T-connector from the counter.
3-108
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