I Functions For Receive; D Squelch Function; D Noise Blanker; D Agc Off Function - Icom IC-M710RT Instruction Manual

4
RECEIVE AND TRANSMIT

I Functions for receive

D Squelch function

The squelch function detects signals with voice com-
ponents and squelches (mutes) unwanted signals
such as unmodulated beat signals. This provides
quiet standby.
When you need to receive weak signals, the squelch
should be turned off.

D Noise blanker

The noise blanker function reduces pulse type noise
such as that coming from engine ignitions.
The noise blanker may distort reception of strong sig-
nals. In such cases, the noise blanker should be
turned off.

D AGC off function

The receiver gain is automatically adjusted according
to received signal strength with the AGC (Automatic
Gain Control) function to prevent distortion from
strong signals and to obtain a constant output level.
When receiving weak signals with adjacent strong
signals or noise, the AGC function may reduce the
sensitivity. In this situation, the AGC function should
be deactivated.

D RF gain setting

The receiver gain can be reduced with the RF gain
setting. This may help to remove undesired weak sig-
nals while monitoring strong signals.
Usually, the AGC function reduces the RF gain ac-
cording to the receive signal strength and these weak
signals are remove. However, during no signal recep-
tion, these weak signals may not be heard.
In such cases, the RF gain may be useful for setting a
minimum level at which to hear signals.

D Clarity control

Voice signals received from other stations may be dif-
ficult to receive. This may sometimes happen if a sta-
tion is transmitting slightly off frequency. In such
cases, compensate the receive frequency only, using
the [CLARITY] control.
10
Push [SQL] to toggle the function on and off.
ALM
RX
D U P
AGC
TX
SQL
DSC
• "SQL" appears when the squelch function is turned on.
Push [NB] to toggle the function on and off.
ALM
RX
D U P
AGC
TX
N B
DSC
• "NB" appears when the noise blanker function is turned
on.
Push [AGC] to toggle the function on and off.
ALM
RX
AGC AG AGC
TX
DSC
• "ê" appears when the AGC function is deactivated.
➀
Push [FUNC] then [RX] to call up the following dis-
play.
ALM
RX
AGC
TX
DSC
➁
Rotate the [CHANNEL] selector to set the desired
minimum cutting level.
• "0" to "9" are available.
• S-meter shows the minimum permitted level.
➂
Push [FUNC] or [CE] to exit the RF gain display.
Adjust [CLARITY] to improve the audio signal.
F
F
F
F
[CLARITY]