17-5  Section 17 Setting up Alerts 
 
 
 
 
 
17.2.2  Setting the status of the AIS target that is 
targeted for lost warning 
1  Select a target for detecting a lost warning of the AIS target from the [Lost AIS target 
Warning] combo box. 
 
ACT&Danger&Select:   Activated AIS targets, danger targets and numeric value display 
targets are included. 
Danger:    Danger targets are included. 
Off:    Lost warnings are not generated. 
 
Lost warnings for sleeping AIS targets will not be generated. 
 
Memo 
If Off is being set, the following message is displayed in the alert status area. 
Lost AIS target Warning is Disabled 
 
2  Select a target for detecting a CPA/TCPA alarm of the AIS target from the [AIS 
CPA/TCPA Alarm] combo list. 
 
ACT & Sleeping:  Activated AIS targets and sleeping AIS targets are included. 
Active:    Activated AIS targets are included. 
Off:    CPA/TCPA alarms are not generated. 
 
During the ECDIS task, the Collision Avoidance item is hidden from the classification pane, 
and CPA / TCPA alert and Lost alert are not detected and sounded. 
Also, drawing on the chart of AIS dangerous ship and AIS lost target will not be done. 
Regarding TT, the dangerous ship and the lost target are drawn.