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5. AIS Operation
5-23
5.16.2 How to create a new safety message
You can create a safety message for transmission by the AIS transponder. This can be done as follows:
1. Display Menu/Info/Chart Menu in the guidance area then push the left button
to open the Main menu.
2. Select Safety Message from the menu then push the scrollwheel.
3. Put the cursor on the triangle in the menu to show the submenu.
4. Select Create Message from the menu then push the scrollwheel.
Address box
Message type box
Channel box
5. Check Enable changes.
6. Put the cursor in the Address box. Spin the scrollwheel to select Addressed
to MMSI or Broadcast to All as appropriate then push the scrollwheel. Select
Addressed to MMSI to send the message to a specific ship (AIS equipped) or
Broadcast to All to send to all nearby AIS transponder-equipped ships. For
Addressed to MMSI, enter MMSI of ship in the MMSI input box, in the
Vessel window.
7. Select message type at Message type box: Safety message for safety
message, Binary message for routine message.
8. At the Channel box, select channel over which to broadcast your message.
The choices are Channel A; Channel B; Channel A and Channel B and Don’t
care for channel.
9. Enter the text of your message in the box below Channel. The number of
characters that may be entered depends on message type.
Safety message broadcast: 161 characters
Binary message broadcast: 156 characters
Safety message addressed to MMSI: 156 characters
Binary message addressed to MMSI: 151 characters