6-9 Section 6 Target Tracking and AIS
Symbol Definition Remarks
Physical AIS AtoN
target
(Off position)
The symbol and target No./AtoN name (xxx)
nearby the symbol are indicated in yellow.
Physical AIS AtoN
target
(Numerical display)
When the numeric data is displayed, the
target symbol is enclosed in a square.
Physical AIS AtoN
target
(Lost display)
The alarm sounds.
The alarm message (Lost) turns orange and
blinks. The symbol is displayed by overlaying
red x marks.
Physical AIS AtoN
target (Flood light
abnormality)
"Unlit" is displayed in yellow at the top of the
symbol. The target No./AtoN name (xxx) is
displayed nearby the symbol.
Physical AIS AtoN
target
(radar beacon
abnormality)
"Racon err" is displayed in yellow at the top of
the symbol. The target No./AtoN name (xxx)
is displayed nearby the symbol.
Virtual AIS AtoN target
(Emergency wreck
mark)
The target No./AtoN name (xxx) is displayed
next to the symbol.
Virtual AIS AtoN target
(North cardinal mark)
The target No./AtoN name (xxx) is displayed
next to the symbol.
Virtual AIS AtoN target
(East cardinal mark)
The target No./AtoN name (xxx) is displayed
next to the symbol.
Virtual AIS AtoN target
(South cardinal mark)
The target No./AtoN name (xxx) is displayed
next to the symbol.
Virtual AIS AtoN target
(West cardinal mark)
The target No./AtoN name (xxx) is displayed
next to the symbol.
Virtual AIS AtoN target
(Port hand mark)
The target No./AtoN name (xxx) is displayed
next to the symbol.
Virtual AIS AtoN target
(Starboard hand
mark)
The target No./AtoN name (xxx) is displayed
next to the symbol.
Virtual AIS AtoN target
(Isolated danger)
The target No./AtoN name (xxx) is displayed
next to the symbol.