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4. AIS OPERATION
4-3
4.3 Turning AIS Display On/Off
1. Roll the trackball to choose the AIS DISP box at the right side of the screen.
AIS
OFF
DISP
AIS DISP box
2. Push the left button to display AIS ON or AIS OFF as appropriate.
ON: All targets received from the AIS transponder are displayed with
symbols.
OFF: All AIS symbols disappear.
When the AIS is turned on, AIS targets are marked with appropriate AIS symbol
as below.
Activated target
ROT higher
than preset ROT
Dangerous target Lost target Target selected
for data display
AIS symbols
Note 1: The equipment continues to process AIS targets when the AIS feature is
switched off. When the AIS is again turned on, symbols are immediately
displayed.
Note 2: AIS symbols are momentarily erased after the screen is redrawn when
the heading is changed in the Head-up mode.
Note 3: When no AIS data is received, the message “RECEIVE” appears in the
text window. Check the AIS transponder.