GX1280SPage 32
SCAN” with the CHANNEL selector knob.
4. Press the [CALL/SET] key.
5. Turn the CHANNEL selector knob to select “ON”or
“OFF.”
6. Press the [CALL/SET] key to store the selected
setting.
7. To exit this menu and return to radio operation
mode press the [16/9] key.
7.3 USCG DSC WATCH
The USCG has plans to upgrade its VHF National Distress System (expected
by 2005), so at the time of printing only larger vessels that are required to
carry VHF DSC radios will be able to hear your distress transmission.
7.3.1 Maritime Mobile Service Identity (MMSI)
What is an MMSI?
An MMSI is a nine digit number used on Marine Transceivers capable of using
Digital Selective Calling (DSC). This number is used like a telephone number
to selectively call other vessels.
THIS NUMBER MUST BE PROGRAMMED INTO THE RADIO TO OPER-
ATE THE MATRIX DSC FUCTIONS.
How can I obtain an MMSI assignment?
Boat US offers free MMSI numbers. Visit the following to register:
http://www.boatus.com/mmsi/.
7.3.2 Programming the MMSI
NOTE
User MMSI can be input only twice. If the user tries to input MMSI more
than twice, the radio will show the display on the right. If the user needs
to change the MMSI more than twice, the transceiver will have to be
sent to Factory Service. Refer to the section 10.2 FACTORY SERVICE.
1. Press and hold down the [CALL/SET] key until
the “RADIO SETUP” menu appears.
2. Turn the CHANNEL selector knob to the left to
select “DSC SETUP” menu.
3. Press the [CALL/SET] key, then select “USER
MMSI” with the CHANNEL selector knob.
4. Press the [CALL/SET] key. The “User MMSI” num-