21. AIS Target Functions
21-7
21.4 Displaying AIS Target Past Positions
To display AIS target past tracks, do the following:
1. Spin the thumbwheel to display Chart Display/Info/Standard Display in the mouse functions area, and then push
the left mouse button.
2. Click an arrow tab in the dialog box until the Tracking page appears if it is not already open. Click the Oth or
Std radio button of the item Targets to display AIS target past positions on the ECDIS.
3. Set the length of track (in minutes) and define number of points to display past track of targets.
Presentation of AIS target past track. ARPA targets have same kind of presentation for past track.