Icom IC-910H, Instruction Manual, Page: 28 / 88

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Functions for receive
D Volume setting
➥
Rotate [AF] control for the specified operating band
(MAIN or SUB) to output a suitable audio level.
D Squelch setting
The squelch removes noise output from the speak-
er (closed position) when no signal is received. The
squelch is particularly effective for FM. It is also avail-
able for other modes.
With the default setting, noise squelch and S-meter
squelch in FM, RF gain and S-meter squelch in SSB/
CW mode operation are assigned to [RF/SQL] con-
trol. The assignment can be changed in the general
set mode. (p. 56)
• When operating in FM
q
Rotate [RF/SQL] fully counterclockwise.
w
Rotate [RF/SQL] clockwise to the position where
the noise just disappears.
• MAIN/SUB band indicator also goes OFF.
By rotating [RF/SQL] to a deeper position (clockwise),
the S-meter will move and the S-meter squelch func-
tion will be activated. When the S-meter squelch is acti-
vated, weak signals, weaker than the S-meter squelch
set level, are ignored.
[RF/SQL] (SUB)
[RF/SQL] (MAIN)
• When operating in SSB/CW
q
Rotate [RF/SQL] fully counterclockwise.
w
Rotate [RF/SQL] clockwise to the position where the
maximum RF gain (S-meter bar disappears), MAIN/
SUB band indicator goes OFF, and floor noise dis -
appears.
• With the default setting, the squelch opens at 12 o’clock
position, however, the squelch threshold level can be
set to 13 o’clock (1 o’clock) position in the SSB/CW set
mode. (p. 62)
• When rotating [RF/SQL] counterclockwise, RF gain de -
creases (lower sensitivity) and the S-meter bar appears
to indicate the receivable RF signal level.
5
26
RECEIVE AND TRANSMIT
[AF] (SUB)
[AF] (MAIN)