GMR25 MOBILE RADIO
USER GUIDE
GMR25 MOBILE RADIO
USER GUIDE | VERSION 1.1.0 | APRIL 2021
SCAN FOR
COMPLETE
MANUAL
PUSH-TO-TALK
[PTT]
POWER
BUTTON
VOLUME
KNOB
TONE CODE
MODE
A/B
CHANNEL
SELECT
SCAN
MODE
MIC PORT
MONITOR
SETTINGS
CHANNEL
TRANSMIT
INDICATOR
LOCK
MON
SC
A/B
EXTERNAL
SPEAKER PORT
PROGRAMMING
PORT
ANTENNA
RADIO FUNCTIONS
A/B CHANNEL SELECT
Push [
A/B
] to change between top and bottom channel bank.
TRANSMIT INDICATOR
Indicator light will turn red when transmitting.
TONE CODE MODE
Short press [
TC
] enters tone code mode. Long press [
TC
] to select
RX/TX tone codes.
SCAN MODE
Short press [
SC
] to scan channels.
MIC PORT
If connecting to intercom, do not connect hand mic.
MONITOR
Hold [
MONI
] to temporarily change the squelch to zero allowing
you to hear very weak signals.
CHANNEL KNOB
Turn to change channels.
VOLUME KNOB
Turn clockwise to raise volume, counterclockwise to lower volume.
SETTINGS
Push and hold the [ ] to access the Function settings.
LOCK
Push and hold [ ] to lock/unlock the radio.
