Turn 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 and display icons 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.
Adjust the Volume
1. Turn the On/Off/Volume Control knob clockwise to increase the volume,
or counterclockwise to decrease the volume.
Select a Radio Channel
1. G or H to select the desired channel.
Receive
1. Turn radio on and adjust volume to the desired level.
2. Select desired channel.
3. Listen for voice activity. The red LED indicator flashes while your radio is
receiving.
Transmit
1. Hold the microphone vertically 1 to 2 inches (2.5 to 5 cm) from your mouth.
Press the PTT button to talk. The red LED indicator lights steady while the
call is being sent.
2. Release PTT button to listen.
Start or Stop System Scan
1. Press the preprogrammed Scan button to start scan. – OR – G or H to
select a channel that contains a Scan list. From the Scan menu, select
SCAN ON. The green LED indictor blinks during scan operation.
2. Press the preprogramed Scan button again to stop scan. – OR – from the
Scan menu, select SCAN OFF.
Start or Stop Auto Scan
1. G or H to select a channel that has been preprogrammed for Auto Scan
by your dealer/programmer.
2.
G or H to select a channel that has not been preprogrammed for Auto
Scan by your dealer/programmer.
Delete a Nuisance Channel During Scanning
1. While radio is on a nuisance channel, hold down preprogrammed Nui-
sance Delete button until you hear a tone.
2. Release Nuisance Delete button.
CM300
™
Quick Reference Card
Record the functions for your radio’s programmable buttons in the table
provided below. For further information, see page 12 of this User Guide.
P2
P1 P3 P4
CM300
PERS4
Red/Yellow/Green
LED Indicators
Programmable
Buttons (P1, P2, P3, P4))
Microphone
Jack
Knob
On/Off/Volume
Display
Channel Selector
Menu Scroll Buttons
Speaker
Menu Buttons
(P1, P2)
Button Function Short Press Long Press Hold Down Page
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