Table of Contents
Advertisement
4.16
AIS Messages
You can send and receive messages via the VHF link, to a specified destination (MM-
SI) or all AIS-equipped ships within communication range of your ship. Messages can
be sent to warn of safety of navigation, for example, an iceberg sighted. Routine mes-
sages are also permitted. Short safety-related messages are only an additional means
to broadcast safety information. They do not remove the requirements of the GMDSS.
4.16.1
How to create and transmit a new AIS message
You can create and send an AIS message as follows:
1. Right-click the AIS mode indication then click [AIS Menu]
to show that menu.
2. Open the [8 TRANSMIT MESSAGE] menu.
3. At [1 ADDRESS TYPE], select [ADDRESSED] to send
the message to a specific AIS-equipped ship, or [BROAD-
CAST] to send the message to all AIS-equipped ships
within VHF communication range. For [ADDRESSED],
enter MMSI of ship at [3 MMSI No.].
4. At [2 MESSAGE TYPE], select [SAFETY] for safety mes-
sage, or [BINARY] for routine message.
5. At [4 CHANNEL], select the channel over which to broad-
cast your message. The choices are [A/B], [A or B] or [A
and B].
6. Click [NEXT] to go to the next page.
7. Select [3 EDIT]. A text input box appears together with the
software keyboard. Use the software keyboard to enter
your message. The number of characters that may be en-
tered depends on message type, and the number of char-
acters available appears below the text box.
Safety message broadcast: 161 characters
Binary message broadcast: 156 characters
Safety message addressed to MMSI: 156 characters
Binary message addressed to MMSI: 151 characters
8. To save the file, select [2 SAVE FILE].
9. To transmit the message, click [4 TRANSMIT MESSAGE]. You are asked if you
are sure to transmit the message. Click the [OK] button to transmit the message.
The Alert 542 "AIS Transmitting" appears in the [Alert] box while the message is being
transmitted. If the message could not be transmitted, the Alert 541 "AIS Message
Transmit Error" appears.
4. AIS OPERATION
4-15
Advertisement
Table of Contents
Troubleshooting
