Icom IC-718 - Manual (Page 22)

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20
n Mode selection
The following modes are available 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 desired
operation mode.
 Push [MODE] for 1 sec. to toggle between USB
and LSB. (SSB mode only)
 Push [MODE] for 1 sec. to toggle between CW
and CW reverse or RTTY and RTTY reverse. (CW
and RTTY mode only)
• The selected mode is indicated in the function display.
Note: If desired mode cannot be selected, it’s use
may inhibited by initial set mode. (p. 44)
OPERATING MODE SELECTION
OPERATING MODE SELECTION
Push
momentarily
Push
for 1 sec.
USB LSB
CW CW
RTTY RTTY
AM
MODE
MODE
The IC-718 uses the same control, [RF/SQL], to
adjust either the RF gain or the squelch. [RF/SQL]
adjusts either the RF gain or the squelch depending
on the operating mode selected and the condition of
the RF/SQL item in initiaset mode (p. 44).
• [RF/SQL] control priority
* The RF gain is set to maximum level when the [RF/SQL]
is set as [SQL] control.
The RF (Radio Frequency) gain is used to adjust the
receiver gain.
• Shallow rotation moves the S-meter to the right indicating
the signal strength which can be received.
The recommended position for RF gain is the 12
o’clock position since this sets RF gain to the max.
The SQUELCH removes noise output from the
speaker (closed condition) when no signal is received.
The squelch is available for the other modes.
• A segment appears in the S-meter to indicate the
S-meter squelch level.
• When set as the [RF/SQL] control
Set mode
setting
USB, LSB,
CW, RTTY
AM
At (AUTO) RF GAIN SQL*
Sq (SQL)
rS (RF/SQL)
(default)
SQL*
RF/SQL RF/SQL
SQL*
Minimum RF gain
Adjustable range
RF gain adjustable
range
Maximum RF gain
Maximum RF gain
Squelch is open. S-meter squelch
S-meter squelch
threshold
Shallow Deep
Squelch is open.
S-meter squelch
S-meter squelch
threshold
• When set as the [SQL] control
• When set as the [RF] control
n RF gain and Squelch
RECEIVE AND TRANSMIT