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AIS
10-7
10.6 Lost Target
A target is declared a lost target when no data is received for three to five reporting intervals.
When this occurs, the target is marked with the (flashing) lost target symbol and the
indication “A-LOST” appears. Press the [CANCEL/CLEAR] key to acknowledge the lost
target, and the lost target disappears. However, the target which becomes a lost target is a
activated target or a sleeping target within the lost target range. (See paragraph 10.11.)
Lost target
Confirming a lost target
1. Use the trackball to place the cursor where there is not ARPA target, marks nor lines.
2. Press the [CANCEL/CLEAR] key.
Note 1: You may also confirm a lost target by pressing [F2] and [5] (Lost Target).
Note 2: The AIS data transmission interval depends on other ship’s speed. For example,
the AIS data is transmitted every 10 seconds on a ship speed of 0-14 kt and every
two seconds on the ship speed of more than 23 knots. For details see the owner’s
manual of the AIS.
10.7 Messages
You may display messages received by the AIS transponder as below.
10.7.1 Displaying messages manually
1. Press the [F2] key to display the AIS(1) menu.
2. Press the [6] key ([MESSAGE]) twice to display the MESSAGE menu.
[Message]
1 [AIS(1)]
2 Safety Related Message
(Addressed)
3 Safety Related Message
(Broadcast)
4 Binary Message*
(Addressed)
5 Binary Message*
(Broadcast)
6 Auto Display
On Off
Safety message addressed to your ship
Safety messge addressed to all ships
Binary message addressed to your ship
Binary message addressed to all ships
Automatic displaying of message
* = Binary messages are messages
other than safety messages.
No of messages saved
(Max. 5 for each type of message.
1 is the latest message.)
1
1
1
1
Message menu