GME GX300W - Manual (Page 4)

VOLUME ON/OFF
Rotate the volume control clockwise past the ‘click’ to turn
the GX300 ON. Continue to advance the control clockwise
to increase the volume. Rotate the control counter-
clockwise to turn the radio OFF.
NOTE: At minimum volume setting there is still sufficient
volume to be heard in a quiet cabin environment.
SQUELCH CONTROL
The squelch control is used to eliminate the background
noise when there are no signals present. To adjust the
squelch, first rotate it fully counter-clockwise until the
background noise is heard, then slowly rotate it clockwise
until the noise just disappears. If there are signals on the
channel, you should wait until the channel is clear before
adjusting the squelch (or select a quiet channel).
Once adjusted, the receiver will remain quiet as long as
there are no signals present, but an incoming signal will
override the squelch and be heard in the speaker. As the
control is advanced further clockwise the squelch action is
progressively increased and stronger incoming signals are
needed to override it. To receive very weak signals or to
disable the squelch, simply turn the control fully counter-
clockwise.
CHANNEL SELECTION
Select the required channel by briefly pressing the or
keys. The selected channel is displayed on the LCD display.
Press and hold either key to quickly advance upwards or
downwards through the channels. Release the key when
the required channel is displayed.
DISPLAY BRIGHTNESS
The LCD has two brightness levels to provide suitable
lighting for day or night use. The default setting is bright.
To select the ‘Dim’ setting
Press and hold the Channel Down key while turning the
radio ON. Minimum brightness will be selected.
To select the ‘Bright’ setting
Press and hold the Channel Up key while turning the radio
ON. Full brightness will be selected.
The selected brightness level will be retained in memory.
TRANSMITTING
To transmit, press the PTT button on the microphone. Hold
the microphone 2-6 cm from your mouth and slightly to
one side so your voice does not project directly into the
microphone. Speak at a normal voice level. Your GX300 has
PAGE 4 INSTRUCTION MANUAL GX300
REAR PANEL
OPERATION - GENERAL FUNCTIONS
Transmit Indicator Channel Number
Channel in
Scan Memory
Noise Limiter
Selected
Scan Selected Dual Watch
Selected
Priority Channel
Selected
Safety Channel
Selected
Busy Indicator
88 Key Selected
DISPLAY
MICROPHONE
Channel Up Channel Down
PTT Switch
CH88 / Priority
Channel
Antenna Socket DC Lead External Speaker
Socket