Icom IC-7800

3-9
■ Volume setting
[AF] for main [AF] for sub
Audio output
increases
Audio output
decreases
➥ Rotate [AF] control clockwise to increase, counter-
clockwise to decrease the audio output level.
 •Setasuitableaudiolevel.
■ RF gain adjustment
[RF] for main [RF] for sub
Sensitivity
increases
Sensitivity
decreases
➥ Rotate [RF] control clockwise to increase, counter-
clockwise to decrease the receiver sensitivity.
■ Squelch level adjustment
[SQL] for main [SQL] for sub
S-meter squelch
Noise squelch (Recommended level; FM mode only)
Squelch is
open
The squelch removes noise output from the speaker
(closed position) when no signal is received.
➥ When no signal is received, rotate [SQL] control
fully counterclockwise first, then rotate [SQL] clock-
wise to the point that the noise just disappears.
3
BASIC OPERATIONS