User's Manual

GMRS-102B Basic Operation 04-06-09
5 of 6
10) Monitoring the channel
It is used for listening the week signal or to hear all activities on the channel by manually
overriding channel setting.
 To activate the Monitor feature
- Press and hold the Monitor[Mon] button.
(The monitor[
RX] icon will appear on the LCD.)
 To disable the Monitor feature
- Press the Monitor[Mon] button once.
(The monitor[
RX] icon will disappear on the LCD.)
11) Keypad Lock
The lock function is to avoid the accidental changes to channel with other radio settings. All
buttons will be locked except the Power, PTT and monitor button.
 To lock the keypad
- Press and hold down the Scan[Scan] button for over 2 seconds.
- Keypad will lock.( LOCK icon will appear on the LCD)
 To unlock the keypad
- Press and hold down the Scan[Scan] button for over 2 seconds.
- Keypad will unlock. ( LOCK icon will disappear on the LCD)
12) Battery status indicator
The Battery[
] icon will blink when the radio is in low battery power.
Charge the rechargeable battery or replace the batteries.
- Full battery - Battery[
] icon is not displayed.
- Low battery - Battery[
] icon is displayed.
- Low battery warning – Battery[
] icon will blinking.
13) External charger socket
MIC socket can be used for the charging purpose.
It should use the recommended rechargeable battery and wall charger.
14) External Speaker - Mic
Use the approved accessories only to have the optimum performance.
- Ear/Mic unit
Normal Position: Hold the transmitter approximately 1” from your face and speak in a normal voice,
with the antenna pointed up and away.