Section 6 Target Tracking and AIS 6-8
Symbol Definition Remarks
Real AIS AtoN target
(On position)
Displayed target No./AtoN name (xxx) nearby
the symbol.
Real AIS AtoN target
(Off position)
The symbol and target No./AtoN name (xxx)
nearby the symbol are indicated in red.
Real AIS AtoN target
(Numerical display)
When the numeric data is displayed, the target
symbol is enclosed in a square.
Real AIS AtoN target
(Lost)
The alarm sounds.
The alarm message (Lost) turns orange and
blinks.
The symbol is displayed by overlaying red x
marks.
Virtual AIS AtoN target
(On position)
Displayed target No./AtoN name (xxx) nearby
the symbol.
Virtual AIS AtoN target
(Off position)
The symbol and target No./AtoN name (xxx)
nearby the symbol are indicated in red.
Virtual AIS AtoN target
(Numerical display)
When the numeric data is displayed, the target
symbol is enclosed in a square.
Virtual AIS AtoN target
(Lost)
The alarm sounds.
The alarm message (Lost) turns orange and
blinks.
The symbol is displayed by overlaying red x
marks.
AIS SAR aircraft
Displayed by the same color as AIS symbol.
Numerical display
AIS SAR aircraft
When the numeric data is displayed, the target
symbol is enclosed in a square.
Lost AIS SAR
aircraft
The alarm sounds.
The alarm message (Lost) turns orange and
blinks.
The symbol is displayed by overlaying red x
marks.