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Using AIS | NSS Operator Manual
Using AIS
If an AIS device is connected, any targets detected by this 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 radar and chart images, and this feature is an
important tool for safe travelling and collision avoidance.
You can defi ne alarms to notify you if an AIS target gets too close or if the target is lost.
AIS vessels on a chart panel AIS vessels on a radar panel
Target symbols
The NSS system use 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 defi ned as dangerous based on
the CPA and TCPA settings. Refer “Defi ning
dangerous vessels” on page 64.
Lost AIS target.
When no signals have been received within a
time limit a target will be defi ned as lost.
The target symbol represents the last valid
position of the target before the reception of
data was lost.
Selected AIS target, activated
by tapping on a target
symbol.
The target will return to default target symbol
when the cursor is moved.
Viewing information about AIS targets
Selecting single AIS targets
When you tap an AIS icon on the chart or radar
panel the symbol will change to Selected target
symbol, and the vessel name will be displayed.
You can display detailed information for a target by
activating the menu when the target is selected.
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