User's Manual

Maintenance Manual
18
Receiving
The radio operates as a receiving standby mode except for the transmitting period. User can adjust the
volume by using the volume switch. The green LED is turn ON when the radio receives the RF signal and
can heard the transmitting voice. According to the setting of transmitting radio, can be heard the DTMF
tone or 5 Tone and displayed caller ID on the LCD.
If frequency is same as current channel but sub-tone is not same as current setting than the green LED
blinks. In order to check if the current channel is in use, press the Monitor button (M) on the left side of
Radio. If pressing the Monitor button (M) for about 2 seconds, the monitor function is activated with a
“beep” sound. To release from the monitor function, press the monitor button shortly.
Changing Channels
Channel Switch and “F1”/”F2” buttons are used for changing
channels. Turn the Channel switch clockwise or press “F1” button to
increase the channel number with beep sound. And Turn the Channel
switch counter-clockwise or press “F2” button to decrease the
channel number with beep sound. Press and hold “F1”/”F2” button then changing channel continuously.
When the channel is changed, channel number or channel names are displayed on the LCD. The channel
frequencies include sub-tone information are pre-programmed by PC program.
Adjusting Transmitting Power
The transmitting power can be selected to High-Power mode or Low-
Power mode. The user can change the transmitting power on the
Menu mode. When Low-Power mode is selected, the indicator icon
“L” is displayed on the LCD. By changing the power to Low-power
mode under a good communication condition, the user can extend the battery life.
SCAN Operating mode
SCAN function is executed with a “beep” sound when pressing the
“F3” and “F2” button consecutively within 0.5 seconds during the
standby state. The radio will change the scan channel and check the
RF signal at regular interval. Pressing “F4” button then SCAN
function can be deactivated.