42
MAIN
AF, RF/
SQL
Inner Knob (MAIN AF)
The inner [MAIN AF] knob sets the audio level of
the MAIN band receiver.
Outer Knob (RF/SQL)
RF
The RF Gain control provides manual adjustment
of the gain levels for the receiver RF and IF stag-
es, to account for noise and signal strength con-
ditions at the moment.
[RF/SQL] knob is normally left in the fully clock-
wise position.
The RF Gain function can be adjusted individual-
ly for MAIN band and SUB band.
•
Before operation, set the operation of
the [RF/SQL] control to “RF” (see be-
low). The default setting is “RF”.
•
It does not operate in FM and DATA-FM
mode.
SQL
The squelch system allows the back-ground
noise to be muted when no signal is being re-
ceived.
Normally, the squelch is not used during SSB or
CW operation.
Before operation, set the operation of the
[RF/SQL] control to “SQL”. The default
setting is “RF”.
Rotate the [RF/SQL] knob to adjust the squelch
until the noise disappears.
If the squelch knob is turned too far to the
right, weak signals cannot be heard
•
Switching the operation of the
[RF/SQL] knob
1. Press the [FUNC] key.
2.
Select [OPERATION SETTING]→[GENERAL]
→ [RF/SQL VR].
3. Select “RF” or “SQL”.
4. Press the [FUNC] key to save the new setting
and exit the Setting Menu.
5. Press the [FUNC] key to exit to normal operation.
RF/SQL settings cannot be set separately
for the MAIN band and the SUB band.
