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4. AIS OPERATION
4-3
4.2 How to Show, Hide the AIS Display
Targets that are being tracked by an AIS transponder
can also be displayed on the display. Click the AIS sta-
tus indication to select [DISP OFF], [DISP FILT] or [DISP
ALL].
DISP OFF: Turn off the AIS display. (Tracking continues
internally.)
DISP FILT: Filter AIS targets according to the settings of
the AIS target filter. See section 4.4.
DISP ALL: Display all AIS targets.
4.3 AIS Symbols
Symbol Default Color Description
Name
Green
Green
Green
Green
Green
Green
Green
Green
Green
Green
Green
Green
Red (fixed)
Red (fixed)
Red (fixed)
AIS tracked target
past position point
Sleeping AIS
target
Activated AIS
target
Activated target in
AZ
Activated target,
true scale symbol
Dangerous AIS
target
Association AIS
target
Association AIS
dangerous target
Heading-turn
indicator
AIS ATON
Virtual AIS ATON
SAR Aircraft
AIS base station
AIS select symbol
AIS lost symbol
Mark past position.
Denote sleeping AIS symbol. (Lines are
thinner than Active AIS symbol.)
Denote active AIS target, with vector (Lines
are thicker than sleeping AIS symbol.)
Active AIS target in acquisition zone, with
vector. (Lines are thicker than Active AIS
symbol.)
Active AIS target with symbol shown in true
scale).
Target’s CPA and TCPA are within the CPA
and TCPA settings. Vector shown.
AIS and TT target declared as "association
target." AIS symbol and AIS data are used.
AIS and TT target declared as "association
target." AIS symbol and AIS data are used.
Target's CPA and TCPA are within limits set.
Show target’s direction of turning.
AIS Aid to navigation
Virtual AIS aid to navigation
Target selected to display its data.
X is superimposed on the AIS target symbol
and is flashing.