Installation manual

Page 20
Transmitting a Call to a Group
When calling a group of stations (i.e. stations all of which share a group MMSI
number, which begins ’0….’), no DSC acknowledgement is required or possible.
To Transmit a Call to a Group of Stations:
1. Press Menu action key to display top level
menu selection; Send DSC messages.
2. Press Select action key to display the
Send DSC Messages menu.
3. The first (default) option displayed in the
Send DSC Messages menu is
Individual or group.
This call is to a group so press Select to display
the Individual or group menu.
4. The first option displayed in the
Individual or group menu is
Called stn MMSI.
If you know the MMSI of the group you wish
to contact press Select to display the
Called stn MMSI entry screen.
5. Use the numeric keys to enter the MMSI, and
Clear to backspace and correct any error.
Ensure 9 digits are entered, then press Select.
6. The radio recognises the '0' prefix as a group
call; the display changes to Group Call,
and the radio prompts for a working channel
number to include in the DSC message. If the
working channel is not OK, use the
Scroll keys or numeric keys to change the
channel, then press Send.
7. The message is now transmitted to the group,
the radio channel changes to the working
channel and the left action key now has the
function Reset. The radio will remain in this
state for 30 seconds or until Reset or PTT key is
pressed.
Note: To transmit an All Ships Call see page 31.
50°56'N at:08:41
001°34'E UTC
Menu
16
Pos
Send DSC Messages 
S
elect
E
xit
Send DSC Messages
Individual or group
Select Back
Individual or group
Called stn MMSI 
Select Back
Called stn MMSI
MMSI:021172222
Select Clear
(
when MMSI entered
)
Group Call
Call stn:021172222
Working Channel:
6
Send Back
50°56'N at:08:42
001°35'E UTC
Reset
6
Pos