Scenario
Low Frequency
Gain (dB)
Mid Frequency
Gain (dB)
High Frequency
Gain (dB)
Square
0
3
5
Indoor
3.5
1.5
–1.5
Downtown
2
2
8
Turning the LQO Feature On or Off
The LQO feature allows the radio to automatically adjust the volume and
effect of received voice in different environments.
To turn this feature on or off, go to
Menu
>
Settings
>
Audio Set
>
LQO
,
and then select
On
or
Off
.
Turning the Audio Feedback Suppression
Feature On or Off
The Audio Feedback Suppression feature helps reduce the noises arising
from short-distance communication.
To turn this feature on or off, go to
Menu
>
Settings
>
Audio Set
>
Audio
Feedback Suppressors
, and then select
On
or
Off
.
MIC & SPK
The MIC & SPK feature allows you to select the microphone and speaker
used by the radio for transmitting and receiving voice respectively.
Selecting the Microphone
To set whether the radio uses the external or internal microphone, go to
Menu
>
Settings
>
Radio Set
>
MIC & SPK
>
MIC Selection
, and then
select one of the following as required:
l
Follow PTT
: When you transmit by pressing and holding the radio's PTT
key, the radio uses the internal microphone; otherwise, it uses the
external microphone.
l
Only Internal
: The radio uses only the internal microphone.
l
Only External
: The radio uses only the external microphone.
l
External First
: When an audio accessory is connected, the radio uses
the external microphone; otherwise, it uses the internal microphone.
Selecting the Speaker
To set whether the radio uses the external or internal speaker, go to
Menu
>
Settings
>
Radio Set
>
MIC & SPK
>
SPK Selection
, and then select one
of the following as required:
l
External First
: When an audio accessory is connected, the radio uses
the external speaker; otherwise, it uses the internal speaker.
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