22
LOUDNESS
This transceiver has a built in booster amplifier. You can
control the volume level by rotating the VOL control.
However, if you are in an environment with excessive ambient
noise, you may find that it is difficult to hear the audio from the
transceiver, even with the volume increased to its maximum
value. In such a case, you can switch the internal booster
amplifier ON to further increase the volume level.
1Momentarily press the switch to enter
the Loudness setting.
2Press the ▲ or ▼ key to turn the booster
amplifier ON ( ) or OFF ( ).
3Press the switch or the key to
confirm your setting.
•If you have turned the booster amplifier
function ON, the LOUD icon appears on
the display.
Note:
◆The Loudness function will not operate if you are using an
optional speaker-microphone.
◆The booster amplifier uses more battery power. Thus, while
using the Loudness function, the battery life will become shorter.