TM 55-1510-221-10
Figure 3-7. HF Control Panel (KCU-951)
channel control from 1 through 99, displayed at the
right end of the display window.
(9.) STO (Store) recessed switch. Stores
displayed data when programming preset channels.
(10.) OFF- VOLUME control.
Applies
power to the unit and controls the audio output
level.
(11.) SQUELCH control. Provides variable
squelch threshold control.
(12.)
CLARIFIER control. Provides 250 Hz
of local oscillator adjustment.
c. Normal Operation.
(1.) Turn on procedure:
NOTE
It is presumed aircraft power is on and
normally used avionic circuit breakers
remain depressed.
NOTE
Aircraft can be configured for either HF
or VOW on position 4 of Audio control
panel (fig. 3-1).
1.
AVIONIC MASTER POWER
switch - ON.
2. OFF-VOLUME switch - Turn
clockwise out of OFF position.
Adjust volume as desired.
(2.) Frequency operation (Simplex only):
OFF-VOLUME Switch - Turn clockwise out of OFF
position. Adjust volume as desired.
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