Vessel settings
MMSI
Used for entering your own MMSI (Maritime Mobile Service Identity) number into the system.
You need to have this number entered to receive addressed messages from AIS and DSC
vessels. You also need to have your MMSI number entered to avoid seeing your own vessel
as an AIS target.
Icon filters
By default, all targets are shown on the panel if an AIS device is connected to the system.
You can select not to show any targets, or to filter the icons based on security settings,
distance, and vessel speed.
Extension lines
Defines the length of course over ground and heading extension lines for your own vessel
and for other vessels.
The length of the extension lines is set to indicate the distance the vessel will move in the
selected time period.
Your own vessel heading information is read from the active heading sensor, and COG
information is received from the active GPS. For other vessels COG data is included in the
message received from the AIS system.
Defining dangerous vessels
You can use the CPA (Closest point of approach) and TCPA (Time to closest point of
approach) values to define when a target should be considered as dangerous. When a target
comes within the distance for CPA or within the time limit for TCPA, the symbol changes to
the dangerous target symbol.
Speed and course
The extension line can be used to indicate speed and course for targets, either as absolute
(true) motion or relative to your vessel.
AIS icon orientation
Sets the orientation of the AIS icon, either based on heading or COG information.
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AIS | NSO evo3S MPU Operator Manual
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