GME GX300W - Manual (Page 5)

GX300 INSTRUCTION MANUAL PAGE 5
a build-in speech processor which automatically controls
the level of your transmitted voice. It is not necessary to
raise your voice or shout into the microphone.
NOISE LIMITER
The NL key activates an extremely effective noise limiter
circuit which helps to eliminate most electrical impulse
interference caused by engine ignition systems etc. This
allows clearer reception of weak signals even under noisy
electrical conditions.
When the NL key is selected, ‘NL’ is displayed on the LCD.
SCANNING
The GX300 is fitted with a Scan function that allows a
group of user selected channels to be scanned for activity.
Your GX300 has a scan memory which remembers which
channels you would like to scan. By default your GX300 is
supplied with all channels in the scan memory.
To see which channels are presently in the scan
memory
Select each channel one by one using the or key and
check to see if ‘M’ is displayed to the lower right of the
channel number.
If ‘M’ is displayed, the channel is in the scan memory,
otherwise the channel is not in the scan memory.
To Add or Remove a channel from the scan memory
Select the required channel, then press and hold the SCAN
key until a beep is heard. If ‘M’ appears to the lower right
of the channel number, the channel has been added to the
scan memory, otherwise it has been removed.
To scan
Adjust the squelch control so the radio is quiet, then briefly
press the SCAN key. A high beep will be heard, ‘SCAN’ will
appear in the display and the channel numbers will change
rapidly as the radio begins scanning. If a signal is found,
the radio will pause on that channel and will remain there
as long as the channel remains busy. Once the channel has
been clear for 5 seconds, scanning will resume.
NOTE: you must have at least two channels programmed
into the scan memory otherwise the radio won’t scan.
To change the scan direction
Press the or key. The radio will scan in the direction of
the selected channel key.
To skip over a busy channel and resume scanning
Briefly press the or key. Scanning will resume.
To transmit on a busy channel
Wait for a break in the conversation, then press the PTT
switch. The radio will exit the scan mode and stay on the
channel allowing you to communicate with others on that
channel.
To resume scanning briefly press the SCAN key again.
NOTE: If the PPT is pressed while the radio is scanning, it
will be ignored and a low beep will be heard when the PPT
is released.
To exit the Scan mode manually
Briefly press the SCAN key. ‘SCAN’ will disappear from
the display.
NOTE: Excessive noise on a channel can cause the scanner
to pause on that channel even if there is no signal there. If
this only happens on one channel, you may need to remove
that channel from the scan memory. If it happens on all
channels, you should try increasing the squelch setting.
OPERATION IN THE MARINE MODE
CHANNEL 88
Channel 88 is the designated 27 MHz marine safety
channel and in many areas is monitored by coastal-watch
and rescue organizations for emergency and safety
purposes. When Channel 88 is selected, ‘SAFETY’ is
displayed on the LCD.
When making radio calls, you should make initial contact
on Channel 88 then switch to another channel to continue
your conversation. This leaves Channel 88 free for other
calls or emergencies.
CHANNEL 88 SWITCH
Your GX300 has a dedicated Channel 88 key to allow
instant access to Channel 88. Pressing this key cancels all
other functions such as Scan or Dual Watch and takes you
straight to Channel 88. When Channel 88 is selected by the
88 key, ‘CH 88’ is displayed on the LCD. The manual or
keys are disabled in this mode.
To return to normal channel operations briefly press the 88
key again. ‘CH 88’ will disappear from the display and the
radio will return to the previously selected channel.
DUAL WATCH (MARINE MODE)
Dual Watch in the Marine mode allows your GX300 to
monitor both Channel 88 and another selected channel
by quickly switching between them. Any signals received
on Channel 88 take precedence over signals on the
selected channel.