1.
Illuminated LCD (Liquid Crystal Display)
2.
PTT (Push-to-Talk Button)/Enter
Hold down to transmit and release to receive.
Allows you to set different function.
3.
Mode button
Press to change modes.
Allows you to program different functions.
4.
Up button
To select the channel and option in mode operation.
5.
Down Button
To select the channel and option in mode operation.
6.
Intercom/Monitor button
Allows private (unbroadcasted) driver to passenger communication.
Allows you to listen in on a channel for weak signals.
7.
Power On/Off knob and VOX setting
To turn the unit on/off and to select the VOX sensitivity level.
8.
Volume Up button
To increase the volume level.
9.
Volume Down button
To decrease the volume level.
10.
Microphone and Speaker input
For the driver’s headset.
11.
Intercom input
For the passenger’s headset.
12.
Auxiliary input
For a cell phone or external PTT (Call for applications.)
13.
Audio input
For an external audio source (ie. Walkman, CD, MP3 player etc.).
14.
Fixed low profile Antenna.
Turn the VOX sensitivity dial clockwise to turn the unit on. The radio will emit
a tone to let you know the unit is on.
Turn the VOX sensitivity dial counterclockwise to turn the unit off. The radio
will emit a tone to let you know the unit is off.
The VOX dial controls the sensitivity of the microphone. As the dial is turned
clockwise, the sensitivity increases. This unit has circuitry and software that
senses when you speak through the headset and will automatically transmit.
When the surrounding noise levels increase, the mic may be activated uninten-
tionally. To reduce the sensitivity of the mic, turn the dial counterclockwise.
When the VOX is set at a low sensitivity position, it will require your voice to
be slightly louder in order to activate the microphone transmission.
Choose the desired channel by pressing Up/Down button. Then press the PTT
button to enter. Channel 10 is an
Emergency Channel
. Use the emergency
channel only for the purpose of soliciting or rendering assistance to a traveler,
or for communicating in an emergency pertaining to the immediate safety of life
or the immediate protection of property. This channel is used by certain organ-
izations during emergency situations, and may not necessarily be monitored.
OPERATION
LCD
1
2
3
4
5
6
7
8
9
DESCRIPTION
MODE
INTERCOM MODE
SCAN MODE
VOX
BATTERY METER
MELODY
KEY LOCK
TALK GROUP
CHANNEL
POWER ON/OFF
VOX SENSITIVITY
CHANNEL SELECT
8
9
gmrsx1-owners-manual 2/24/04 1:59 PM Page 12
