8
I N S T R U C T I O N M A N U A L
G X 8 5 0
GENERAL OPERATION
POWER ON/OFF VOLUME CONTROL
Turn the Volume knob clockwise past the ‘click’ to turn the
radio ON. Continue turning the knob clockwise to increase
the volume. Turn the knob counter-clockwise to reduce the
volume. Continue turning the knob counter clockwise past
the ‘click’ to turn the radio OFF.
SQUELCH
To adjust the Squelch, briefly press the
SQL
key. The present
squelch level will be displayed. Use the
or
keys
to adjust the squelch level from 0 (min) to 9 (max).
CHANNEL SELECTION
Briefly press the
key to step upwards one channel or the
key to step downwards one channel. Press and hold the
or
keys to scroll quickly through the channels at a
faster rate. When the key is released the channel scrolling stops.
WEATHER CHANNELS (USA & CANADIAN
CHANNEL SET)
The US NOAA weather channels are available only when the
USA or Canadian Channel Set is selected. Weather channels
are not available on the International marine band.
To access the weather channels while on the USA or
Canadian band, press and hold the
key. The radio
will switch to the weather channels and the ‘WX’ icon will
appear. Weather channels are numbered 01 – 10 and are
selected using the
or
keys. To return to the normal
communications channels press and hold the
key again.
NOTE:
Weather channels provide a receive-only weather
information service in and around the USA and Canada. You
cannot transmit on the weather channels.
Weather Alert Operation (WAT) (USA &
Canada)
When a weather warning is issued in your area the NOAA
weather service will transmit a weather alert tone on your
local weather channel. If the weather alert function is
activated on your radio, the reception of this tone will cause
a short alarm to sound and the radio will automatically tune
to the weather channel where the alert tone was detected.
The alert should be detected in all the modes of operation
including Standby, Dual and Tri-watch and Scan etc.
To Activate the Weather Alert Function
1. Press and hold the
key to select the weather
channels. ‘WX’ is displayed.
2. Press and hold the
key again to switch ON the
weather alert function. ‘WAT’ will appear in the upper right
of the display.
3. Select the local weather channel that you wish to monitor
for alerts using the
or
keys.
4. Briefly press the
key to return to normal operation.
When the weather alert function is enabled the radio will
check the selected weather channel every 4 seconds for a
weather alert tone. If an alert tone is detected, the ‘WX’ and
‘WAT’ icons will flash and a short alarm tone will sound. The
radio will then automatically switch to the selected weather
channel to allow you to hear the weather warning.
To disable weather alerts;
1. Press and hold the
key to enable the weather
channels. ‘WX’ is displayed.
2. Press and hold the
key again to switch OFF the
weather alert function. ‘WAT’ will disappear from the
upper right of the display.
3. Briefly press the
key to return to normal operation.
Private Channels
A brief press of the
key is for private channels. This
feature is not available to users in Australia and New
Zealand.
16 KEY
The GX850 supports two priority channels.
Priority Channel 16
Briefly press the
key to switch to Channel 16. All
previous functions such as scanning or low power will be
cancelled and the radio will switch to channel 16 with Hi
transmit power selected. When the
key is used to select
