B&G Zeus2 12 - Manual (Page 83)

Defining dangerous vessels
You can define 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.
Different line style is used on the extension lines to indicate motion as shown below.
AIS vessels shown with Absolute motion AIS vessels shown with Relative motion
AIS icon orientation
Sets the orientation of the AIS icon; either based on heading or COG information.
AIS | Zeus2 Operator Manual 83