Turning the Radio On or Off
1. Rotate the
On/Off/Volume Control
knob clockwise. You will hear the self-test
pass tone and see the green LED indicator light momentarily.
2. Rotate the
On/Off/Volume Control
knob counterclockwise until you hear a
click and both the display and the LED indicators turn off.
Adjusting the Volume
1. Turn the On/Off/Volume Control knob clockwise to increase the volume, or
counterclockwise to decrease the volume.
Selecting a Radio Channel
1. Press the
or
button to select the desired channel.
Sending a Call
1. Turn radio on and select appropriate channel.
2. Press
PTT
button, hold the microphone 1 to 2 inches (2.5 to 5 cm) from your
mouth, and speak clearly into it.
3. Release
PTT
button to listen.
Receiving a Call
1. Turn radio on and adjust volume to the desired level.
2. Select desired channel.
3. To respond to an incoming call, press
PTT
button, hold the microphone 1 to 2
inches (2.5 to 5 cm) from your mouth, and speak clearly into it.
Starting or Stopping Scan
1. Press the preprogrammed
Scan
button to start scan. The green LED indictor
blinks during scan operation. Or, select a channel that has been prepro-
grammed to start Auto Scan.
2. Press the
Scan
button again to stop scan. Or, select a channel that has not
been preprogrammed to stop Auto Scan.
Deleting a Nuisance Channel During Scanning
1. While radio is on a nuisance channel, hold down preprogrammed
Nuisance
Delete
button until you hear a tone.
2. Release
Nuisance Delete
button.
GM3188 Quick Reference Card
Record the functions for your radio’s programmable buttons in the table
provided below. For further information, see page 8 of this User Guide.
Programmable
Button 2 (P2)
Red/Yellow/Green
LED Indicators
Programmable
Button 1 (P1)
Microphone
Jack
Knob
On/Off/Volume
7-Segment
Display
Channel Selector
Buttons
High Power
Indicator
Button
Function
Short Press Long Press
Hold Down
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