When the cursor is placed over an AIS vessel for at least
two seconds, a data box appears at the bottom of the
window with information about the AIS vessel.
For complete AIS information
over AIS vessel > .
Press either
or to clear the information.
16-2 Dangerous Vessels
The NX40/45 calculates the time of closest point of
approach (TCPA) and closest point of approach (CPA) for
each AIS vessel.
This is used to determine potential dangerous vessels.
If the TCPA and the CPA is below the trigger values then
it will be considered dangerous. (See section 18-8 for
setting the dangerous vessel alarm)
A dangerous vessel is indicated on the chart by a red
circle around the icon.
16-3 AIS Windows
To go to the AIS windows
> More > AIS > > Vessels or Safety msgs (rx)
>
Vessels
This is a sorted list of vessels currently being received
by the AIS receiver. The maximum number of vessels
that the system will support is 250. Once maximum is
reached, vessels furthest away from the current location
will be replaced. A vessel will be removed from the list
if no information is received within 6 minutes from the
last message.
Displaying an AIS vessel on the chart
> select a vessel >
> Display
Displaying Full AIS Details
> select a vessel > > More Info or
This window displays all information for the selected AIS
vessel provided by the AIS receiver.
TCPA 15 min
CPA 0.5 nm
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