Motorola Radius GM300 Operating Instructions

Operating Instructions for the Motorola
Radius® GM300 16-Channel, Conventional FM Radio
ON/OFF
VOLUME
MICROPHONE
CONNECTOR
To turn the radio on
Turn the ON/OFF VOLUME knob clockwise 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 (
through the channels.
To monitor a channel, push the MONITOR (
in the monitor mode, the amber MONITOR LED will light steadily.
To unsquelch the radio, press and hold the MONITOR (
To leave the unsquelched mode, press the MONITOR (
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 termi-
nate 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.
CHANNEL MONITOR
UP LED
CHANNEL MONITOR
DOWN
SCAN TRANSMIT/
LED BUSY LED
Pri
Usr
Scan
+
SELECT
SCAN
/ ) button. An extended press will scroll
) button or take the microphone off hook. When
) button for two seconds.
) button again. This will return the
SPEAKER
*6880902Z41*
6880902Z41-B