Section 4 AIS Operation  4-2 
4.2  Activating an AIS Target 
Activates an AIS target, and displays the target's vector and make a collision decision. 
 
4.2.1  Manual activation 
Activates an AIS target in manual mode to display the vector and heading line. 
1  Set the cursor mode to the AUTO mode. 
2  Place the cursor on the sleeping AIS symbol to be activated and then click on. 
The selected AIS target is activated. 
 
4.2.2  Automatic activation 
Activate an AIS target in automatic mode to display the vector and heading line. 
When the automatic activation function is used, AIS targets are automatically activated when they go 
into the automatic activation zone. The automatic activation zone is identical to the automatic 
acquisition zone (AZ) used for target tracking. For the zone setting, refer to "3.1.1 
Auto acquisition 
(automatic acquisition) mode
 ". 
 
Memo 
When the AIS target's symbol is activated but the vector is not displayed, the following are 
probable causes of the trouble: 
•  COG/SOG is not input yet from the GPS. 
•  The selected speed sensor is malfunctioning.