Operation Manual

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Using AIS | NSS Operator Manual
Filtering the targets
All targets are by default shown on the display if an AIS device is
connect to the NSS system.
You can select to not show any targets, or to fi lter the icons based on
security settings, distance and vessel speed.
The vessels extension lines
The length of the extension lines for your vessel and for other
vessels can be set by the user.
The length of the extension lines is either set as a fi xed distance,
or to indicate the distance the vessel will move in the selected
time period.
For own vessel heading information is read from active heading
sensor, and COG information is as received from the active GPS.
For other vessels COG data is included in the message received from the AIS system.
D e  ning dangerous vessels
You can defi ne an invisible guard zone around your
vessel. When a target comes within this distance from
your vessel, the symbol will change to the “dangerous”
target symbol. An alarm will be triggered if activated
in the Alarm settings panel.
Speed and course indication
The extension line can be used to indicate speed and course for targets; either as absolute
(true) motion in the chart or relative to your vessel.
Diff erent line style is used on the extension lines to indicate motion as shown below.
Absolute motion Relative motion
AIS icon orientation
Sets the orientation of the AIS icon; either based on heading or COG information.
COG
Heading