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TM 11-5865-215-13
Receiver Control Operator Controls and Instruments
Control or instrument
Function
-------- --. -- -- -- --.----..----------
Allows monitoring of receiver audio.
PHONES
(connector J1)
VOLUME
Controls audio out-put level.
MIN/MAX
(potentiometer R5)
MGC*
Allows the receiver control operator to control gain
MIN/MAX
of receiver IF stages,
(potentiometer R2)
CLARIFIER*
Provides fine tuning resolution of 100 Hz when receiver
MIN/MAX
control is in single sideband (ssb) operation.
(potentiometer Rl)
RECEIVER FUNCTIONS
Provides a noise threshold (squelch) level which the
SQL
received signal must exceed to provide a video and
(S1)
audio output. In off position, all received audio
(and noise) is output 6 by the receiver
Provides automatic gain control to prevent a strong
AGC
signal from overdriving the IF stages of the receiver.
(S2)
Allows the IF stage gain of the receiver to be manu-
MGC
ally controlled by MGC.
(S3)
LMGC
Allows limited manual control of receiver IF gain
using MGC control (Age function takes over when re-
(S4)
ceived signal strength is excessive).
Turns on internal receiver test signal for intercept
TEST TONE*
subsystem BITE test
(S5)
8 KHZ BW
Sets receiver bandwidth at 8 kHz.
(S6)
Sets receiver bandwidth at 30 kHz.
30 KHZ BW
(S7)
Sets receiver bandwidth at 50 kHz.
50 KHZ BW
(S8)
*Momentary switch operation (operates only while key is pressed).
3-2
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