G X 8 5 0
I N S T R U C T I O N M A N U A L
1 3
DSC Menu
Individual Call
Position Request
All Ship Call
Group Call
Test Call
Receive Call Log
Send Call Log
Exit Enter
CONTEXT
MENU
Note the context menu options at the bottom of the display.
Press the keys directly below the context menu to select those
options. E.g. In the example above, press the
key to
Exit the menu, the
or
keys to move up and down
through the menu items and the
key to Enter (select)
the menu item.
The following Menu items are available:
•
Individual Call
•
Position Request
•
All Ship Call
•
Group Call
•
Test Call
•
Receive Call Log
•
Send Call Log
•
Phone Book
•
DSC Setup
•
My MMSI ID
MY MMSI ID SETUP
Before using the DSC function you must set up your user
MMSI ID. If you don’t yet have a User MMSI, please register
with your local Maritime Authority.
NOTE:
The reception of distress calls does not require a
user MMSI.
IMPORTANT:
It is a requirement of the regulations that the
User MMSI can only be entered ONCE. For this reason take
special care when entering your user MMSI number to ensure
it is entered correctly before saving it. You will be required to
enter your MMSI twice as confirmation of the correct number
before it is stored by the radio. If you need to change the
MMSI (due to an entry error or after purchasing a second
hand GX850) please contact GME to arrange for the MMSI
code to be reset.
To enter the 9 digit User MMSI number issued to you by your
local authority:
1. Briefly press the
key to enter the DSC menu.
2. Press the
key to scroll down the screen until ‘My
MMSI ID’ is selected then press Enter.
3. Use the
or
keys to select the number in the first
digit position then press .
4. Repeat step 3 to enter the full 9 digit MMSI number.
5. Once all 9 digits have been entered you will be asked to
enter them again.
6. Repeat step 3 to re-enter the MMSI then press
Enter
to
store or
Exit
to cancel without saving.
MY MMSI ID
Exit
123456789
INDIVIDUAL CALL, POSITION REQUEST, GROUP
CALL AND TEST CALL
The ‘
Individual
Call
’ option is used to alert a specific vessel
that you wish to communicate with them on a specified
channel. If the called vessel’s radio is on a different channel,
their radio will change to the channel you specify.
A ‘
Position Request
’ (or position polling) is used to obtain
the position of another vessel. If the receiving vessel is in
range, an acknowledgement will be received from them that
will include their position. If there is no acknowledgement,
either the receiving boat is not in your communication area or
it has chosen to ignore your request.
A ‘
Group Call
’ is used to contact a group of vessels that
are using the same Group MMSI. All ships in the group who
receive the Group call will change to the specified channel.
For example, this feature could be used to alert all yachts
in a race to announce a change in the race conditions. Any
number with a leading zero can be used as a Group MMSI,
and they do not need to be registered, but the entity deciding
