Rf Gain And Sql Level; Dial Lock Function; Basic Transmission; Adjusting The Transmit Output Power - Icom IC-7300 Basic Manual

3
BASIC OPERATION

RF gain and SQL level

Rotate (outer) to adjust the RF gain and
AF RF/SQL
SQL level.
By default, rotating to left (when set to the 12 o'clock
position) adjusts the RF gain, and rotating to right
adjusts the squelch level as described below.
Squelch is open
RF gain
adjustable range
is displayed
Minimum RF gain
RF gain
Adjust the RF gain to decrease the noise received
from a nearby strong station.
• Rotate counterclockwise to reduce the RF gain, which
reduces the receive sensitivity. "RFG" indicates that the RF
gain is reduced.
L If a strong signal is received and "OVF" (Overflow)
appears, reduce the RF gain until "OVF" disappears.
SQL level
There are 2 types of SQL level, depending on the
operating mode.
• Noise squelch
Rotate the (outer) until the noise just
AF RF/SQL
disappears and the TX/RX indicator goes OFF.
• 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 the clockwise from the 12 o'clock
AF RF/SQL
position to adjust the S-meter threshold level.
L You can change the
AF
"RF/SQL Control." (p. 8-3)
» SET > Function > RF/SQL Control
MENU

Dial Lock function

The Dial Lock function prevents frequency changes
caused by accidently moving
LThis function electronically locks the dial.
Hold down for 1 second to turn the
SPEECH
Dial Lock function ON or OFF.
• " " is displayed while the function is ON.
• During Split Frequency operation, the Split
Lock function may be turned ON. (p. 8-4)
» SET > Function > Lock Function
MENU
Noise squelch (FM mode)
Maximum RF gain
S-meter squelch
adjustable range
Maximum S-meter
squelch
(outer) control type in
RF/SQL
.
MAIN DIAL
Hold down Hold down

Basic transmission

1. Push
TRANSMIT
• The TX/RX indicator lights red and
while transmitting.
2. Push
TRANSMIT
• Returns to receive.
Adjusting the transmit output
power
Before transmitting, monitor your selected operating
frequency to make sure you do not cause interference to
other stations on the same frequency. It is good amateur
practice to listen first, and then, even if nothing is heard,
ask if the frequency in use once or twice, before you start
operating.

D Adjusting the transmit output power

1. Set the operating mode to SSB, CW, RTTY or FM.
(p. 3-2)
(Example: USB)
2. Touch the meter to display the Po meter. (p. 3-10)
3. Open the Multi-function menu.
4. Push
TRANSMIT
• The Po meter level changes according
to your voice level in the SSB mode.
• The TX/RX indicator lights red and
is displayed.
5. Touch "RF POWER."
6. Adjust the transmit output power to between 0 and
100%.
Po meter
• The Po meter displays the RF output power in a
percentage. It becomes the S-meter while receiving.
7. Push
TRANSMIT
• Returns to receive.
3-9
or [PTT] to transmit.
is displayed
or release [PTT].
or hold down [PTT].
Lights red
or release [PTT].
Push
Rotate
Push