User's Manual

17) 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 – three segments are displayed.
* Low battery – one segments is displayed
* Low battery Warning – one segments will brinking.
4. ADJUSTMENT
4-1. Frequency synthesizer
a) After connecting the power meter and dummy load(50 ohm), join the
antenna connector of GMRS-3000PK with above equipment.
b) Check the voltage between RF BOARD BT POINT & GND in digital volt
meter
c) Then set the low channel of GMRS-3000PK the lowest frequency.