Operating Instructions for the Motorola

Radius® GM300 8-Channel, Conventional FM Radio

ON/OFF

CHANNEL

MONITOR

SCAN

TRANSMIT/

VOLUME

UP

LED

LED

BUSY LED

+

MICROPHONE

CHANNEL MONITOR

SELECT

SPEAKER

CONNECTOR

DOWN

SCAN

 

To turn the radio on

Turn the ON/OFF VOLUME knob to the right until it clicks. The LED lights will show the last status of the radio, and a start-up tone will be heard.

To receive

Set the volume by turning the ON/OFF VOLUME knob clockwise.

Select the channel by pressing the UP/DOWN ( / ) button. An extended press will scroll through the channels.

To monitor a channel, push the MONITOR ( ) button or take the microphone off hook. When in the monitor mode, the amber MONITOR LED will light steadily.

To unsquelch the radio, press and hold the MONITOR ( ) button for two seconds.

To leave the unsquelched mode, press the MONITOR ( ) button again. This will return the radio to the coded squelch (PL/DPL) mode.

A short beep tone will be heard whenever a keypress is made.

To transmit

When the channel is clear, press and hold down the Push-to-Talk (PTT) button on the side of the microphone, and speak slowly and clearly. The TRANSMIT/BUSY LED will remain red until the PTT button is released to indicate that you are “on the air”.

The red TRANSMIT/BUSY LED will flash whenever there is another carrier on the selected chan- nel.

NOTE: If your radio has the Time-out-timer (TOT) function activated, transmission will terminate if you hold the PTT button down for over 60 seconds or the programmed time period. When this occurs, an alert tone sounds four seconds before the transmission is cut. To resume transmitting, release the PTT and push again.

*6880902Z26*

6880902Z26-A