Rf Gain And Sql Level - Icom IC-7760 Basic Manual

Setting the frequency
D Directly entering a frequency
Selecting a Memory channel by number
1. Select the Memory mode. (p. 3-1)
2. Touch the MHz digits. (Example: 21)
Memory mode
• Opens the BAND STACKING REGISTER screen.
3. Touch [F-INP].
• Opens the F-INP screen.
4. Enter a Memory channel number. (Example: 3)
L If you want to set a Program Channel number (P1 or
P2), enter "100" for P1 or "101" for P2.
5. Touch [MEMO] to set the memory channel of the
entered number.
• Closes the F-INP screen.
• The selected memory channel contents are
displayed.

RF gain and SQL level

Rotate (outer) to adjust the RF gain and
AF RF/SQL
SQL level.
By default, rotating to the left (when set to the 12
o'clock position) adjusts the RF gain, and rotating to
the right adjusts the squelch level, as described below.
Squelch is open
RF gain
adjustable range
"RFG" is displayed
Minimum RF gain
RF gain
You can adjust the receive sensitivity.
If a strong interfering signal is received, rotate
(outer) counterclockwise to reduce the RF
AF RF/SQL
gain.
L "RFG" is displayed when the RF gain is reduced.
L If a strong signal is received and "OVF" (Overflow) is
displayed, reduce the RF gain until "OVF" disappears.
Squelch (SQL) level
There are 2 types of SQL levels, depending on the
operating mode.
• Noise squelch
Rotate (outer) until the noise just
AF RF/SQL
disappears and the TX/RX indicator goes OFF.
L Activates only in the FM mode.
• S-meter squelch
The S-meter squelch disables the audio output from
the speaker or headphones when the received signal
is weaker than the specified S-meter squelch level.
Rotate (outer) clockwise from the 12
AF RF/SQL
o'clock position to increase the S-meter threshold
level.
L You can change the
following setting. (p. 8-4)
» SET > Function > RF/SQL Control
MENU
L When the Meter type is set to "Bar" or on the MULTI-
FUNCTION METER screen, "▼" indicates the S-meter
squelch level.
S-meter squelch level
3-8
BASIC OPERATION
Noise squelch (FM mode)
Maximum RF gain
S-meter squelch
adjustable range
Maximum S-meter
squelch
(outer) control type in the
AF RF/SQL
3
3