Simplex/Duplex Channel Use; Usa, Canada, And International Mode; Noaa Weather Channels; Noaa Weather Alert - Standard Horizon MATRIX GX3000S Owner's Manual

10.4 SIMPLEX/DUPLEX CHANNEL USE

Refer to the VHF MARINE CHANNEL CHART (page 89) for instructions on
use of simplex and duplex channels.
All channels are factory-programmed in accordance with International,
Industry Canada (Canada), and FCC (USA) regulations. Mode of op-
eration cannot be altered from simplex to duplex or vice-versa.
10.5 INTERNATIONAL, USA, AND CANADA MODE
1. To change the modes, hold the [ 16/9 ] key and press the [ WX ] key. The
mode changes from International to Canadian to USA with each press of
the [ WX ] key.
2. "INTL" will be displayed for International mode, "CAN" will be displayed for
Canadian mode, and "USA" will be displayed on the LCD for USA mode.
3. Refer to the VHF MARINE CHANNEL CHART (page 89) for allocated chan-
nels in each mode.

10.6 NOAA WEATHER CHANNELS

NOAA Weather channels are available in the waters of USA and Canada only.
1. To receive a NOAA weather channel, press the [ WX ] key from any chan-
nel. The transceiver will go to the last selected weather channel.
2. Turn the CHANNEL selector knob on the radio or [ UP ( )] / [ DOWN ( )]
keys on the microphone to select a different NOAA weather channel.
3. To exit from the NOAA weather channels, press the [ WX ] key. The trans-
ceiver returns to the channel it was on prior to a weather channel.

10.6.1 NOAA Weather Alert

In the event of extreme weather disturbances, such as storms and hurricanes,
the NOAA (National Oceanic and Atmospheric Administration) sends a weather
alert accompanied by a 1050 Hz tone and subsequent weather report on one
of the NOAA weather channels. When the Weather Alert feature is enabled
(see section "12.10 WX ALERT"), the transceiver is capable of receiving this
alert if the following is performed:
1. Program NOAA weather channels into the transceiver's memory for scan-
ning. Follow the same procedure as for regular channels under section "10.12
SCANNING."
2. Press the [ SCAN ( MEM )] key once to start memory scanning or priority
scanning (determined from the "12.7 SCAN TYPE" section, see page 62
for details).
GX3000S
NOTE
NOTE
Page 25