Quantcast Table 3-1. AN/GRC-171 Controls and Indicators (Sheet 4 of 4)

 

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Table 3-1. AN/GRC-171 Controls and Indicators (Sheet 3 of 4)
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TM-11-5820-815-14 Service and Circuit Diagrams RADIO SET AN/GRC-171 Manual
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Section II. OPERATING INSTRUCTIONS


TO 31R2-2GRC171-2
TM 11-5820-815-14
NAVELEX 0967-LP-544-5010
Table 3-1. AN/GRC-171 Controls and Indicators (Sheet 4 of 4)
CONTROL OR
REFERENCE
INDEX
INDICATOR
DESIGNATION
FUNCTION
RADIO RECEIVER-TRANSMITTER RT-980/GRC-171 (Figure 3-2) (Cont)
6
PWR ON/OFF
S1
Toggle switch. Enables receiver-transmitter dc-to-dc
switch
converter.
NOTE
PWR ON/OFF switch S1 is operative only when RT-980/GRC-171
POWER ON/OFF switch SI is in the ON position.
7
READY
DS1
Indicator lamp. When lit, indicates receiver-transmitter tuning
complete.
NOTE
READY lamp DS1 is operative only when REMOTE/LOCAL switch
S3 on RT-980/GRC-171 is in the REMOTE position.
8
VOL
R1
Potentiometer. Controls receiver-transmitter audio out-
put level at remote speaker or headset location.
9
SQLCH ON/OFF
S2
Toggle switch. Selects squelch operation.
switch
NOTE
SQLCH ON/OFF switch S2 is operative only when
REMOTE/LOCAL switch S3 on RT-980/GRC-171 is in the
REMOTE position.
3-5/(3-6 blank)


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