4. AIS OPERATION
4-2
4.3
AIS Symbols
When the AIS is turned on, AIS targets are marked with appropriate AIS symbol as below.
AIS symbols
Note 1:
AIS symbols are momentarily erased after the screen is redrawn when the heading is
changed in the Head-up mode.
Note 2
: When no AIS data is received, the message "RECEIVE" appears in the text window.
Check the AIS transponder.
4.4
Activating Targets
When you convert a sleeping target to an activated target, that target's course and speed are
shown with a vector. You can easily judge target movement by monitoring the vector.
Appearance of an active target
To activate or sleep a target, place the cursor on the target and press the
ENTER
key.
Sleeping target
Activated target
Dangerous
target
Lost target
Target selected
for data display
Heading line
COG (Course over Ground) vector
(If there is no heading data,
the line points in direction of COG.)
Rate of turn
(ROT)
