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AIS
If an NAIS400, an AI50 or an NMEA 2000 VHF that can do AIS
(Automatic Identification System) is connected to the network, then
any targets detected by these devices can be displayed and tracked.
You can also see messages and position for DSC transmitting
devices within range.
AIS targets can be displayed as overlay on chart images, making this
feature an important tool for safe travelling and collision avoidance.
You can set alarms to notify you if an AIS target gets too close or if
the target is lost.
AIS target symbols
The system uses the AIS target symbols shown below:
Symbol Description
Sleeping AIS target (not moving or at anchor).
Moving and safe AIS target with course extension
line.
Dangerous AIS target, illustrated with bold line.
A target is defined as dangerous based on the
CPA and TCPA settings. Refer to "Defining dangerous
vessels" on page 125.
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AIS | HDS Gen3 Operator Manual