Receive And Transmit; Mode Selection; Rf Gain And Squelch - Icom ic-718 Instruction Manual

5

RECEIVE AND TRANSMIT

 Mode selection
You can use the following modes in the IC-718:
SSB (LSB/USB), CW, CW REV (CW reverse), RTTY,
RTTY REV (RTTY reverse) and AM.
➥ Push [MODE] one or more times to select the de-
sired operating mode.
➥ Hold down [MODE] for 1 second to toggle between
USB and LSB. (SSB mode only)
➥ Hold down [MODE] for 1 second to toggle between
CW and CW reverse or RTTY and RTTY reverse.
(CW and RTTY mode only)
• The selected mode is displayed in the Function Display.
Note: If desired mode cannot be selected, it may be
inhibited by the Initial Set mode. (p. 44)
 RF gain and Squelch
The IC-718 uses the same control, [RF/SQL], to ad-
just either the RF gain or the squelch, depending on
the operating mode selected and the setting of the
RF/SQL item in Initial Set mode (p. 44).
• [RF/SQL] control priority
Set mode
setting
rS (RF/SQL)
(default)
At (AUTO)
Sq (SQL)
* The RF gain is set to maximum level when [RF/SQL] is
set as [SQL] control.
• Shallow rotation moves the S-meter to the right indicating
the signal strength which can be received.
We recommend setting the RF Gain control to the
12 o'clock position since this sets RF gain to the
maximum.
The SQUELCH removes noise output from the speaker
(closed condition) when no signal is received. The
squelch is selectable in all modes.
• Segments appear in the S-meter to indicate the S-meter
squelch level.
20
USB, LSB,
AM
CW, RTTY
RF/SQL RF/SQL
RF GAIN SQL*
SQL*
SQL*
OPERATING MODE SELECTION
USB LSB
CW CW
RTTY RTTY
AM
• When set as the [RF/SQL] control
Maximum RF gain
Squelch is open.
RF gain adjustable
range
• When set as the [SQL] control
Squelch is open.
Shallow
• When set as the [RF] control
Maximum RF gain
Adjustable range
Minimum RF gain
MODE
Push
MODE
Hold down
for 1 second
S-meter squelch
threshold
S-meter squelch
S-meter squelch
threshold
S-meter squelch
Deep