
13.8 AIS target symbols
Your multifunction display shows a range of symbols to represent
the different types of AIS target.
Target type
Description
Symbol
Transmitting target
Target is moving or at
anchor (Target is not
activated, dangerous
or lost).
Activated target
Target activated —
that is, AIS vector
displayed. Vector
line (optional) shows
predicted distance
travelled within a given
time.
Selected target
Target selected with
cursor. Can view
detailed data.
Dangerous target
Targets within specified
distance (CPA) or time
(TCPA). Dangerous
target alarm sounds if
enabled. Target red
and flashing.
Uncertain target
Calculated CPA / TCPA
value uncertain.
Lost target
When the signal of
a dangerous target
not received for 20
seconds. Target
in latest predicted
position. Alarms
sounds if enabled.
Target flashes.
Buddy target
Target has previously
been added to the
Buddy List.
Aid To Navigation
(AToN) target (Real)
AToN target is ON
position.
Aid To Navigation
(AToN) target (Real)
AToN target is OFF
position.
Aid To Navigation
(AToN) target (Virtual)
AToN target is ON
position.
Aid To Navigation
(AToN) target (Virtual)
AToN target is OFF
position.
Land base station
target
Land base station
target is ONLINE.
Search and rescue
transponders (SARTS)
target
SARTS target
Search and rescue
aircraft (SARS) target
SARS target
Military and law
enforcement target
Only displayed when
connected to approved
STEDS-EAIS AIS
hardware.
13.9 Displaying detailed AIS target
information
From the chart or radar application:
1. Select an AIS target.
The AIS target context menu is displayed.
2. Select
View Full AIS Data
.
AIS Data
The table below shows the AIS target information which if
available will be displayed on the multifunction display:
• Type
• Status
• Destination
• Last Seen
• ETA
• MMSI
• Call Sign
• IMO No.
• Length
• Beam
• Draught
• Heading
• ROT
• Position
• COG
• SOG
• CPA
• TCPA
Note:
Available data is dependant upon what information is
being transmitted from the target vessel and the type of AIS
unit connected to your system.
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