Section 6    Target Tracking and AIS  6-56 
 
Note 
•  When the [AIS] button in the target ship information window is turned off, the symbol is 
canceled. 
 
 
6.7 Alert Display  
 
Target tracking and AIS system have the following alerts. 
 
Message  Description 
AIS Active 95% Capacity  The number of activated AIS targets reached 95% of tolerance. 
AIS 95% Capacity  The number of AIS targets reached 95% of tolerance. 
CPA/TCPA(AIS)  CPA/TCPA warning (AIS) 
Lost(AIS)  The AIS target was lost. 
AIS maximum capacity  The number of AIS targets reached the maximum number of 
targets displayed. 
New Target(AIS)  The AIS target was acquired and activated. 
Not Allowed(TT Out of Range)  Out of TT acquisition range 
Trial  Under the trial process. Occurs instead of a danger target alarm 
when the predicted route of the tracking target intersects with the 
CPA/TCPA limit range 
TT(95% Capacity)  The number of TT targets reached 95% of tolerance. 
TT(CPA/TCPA)  CPA/TCPA warning (TT) 
TT(Lost)  Acquired TT was lost. 
TT(Maximum capacity)  The number of TT targets reached the maximum number of 
targets. 
TT(New Target)  TT was acquired. 
TT(Out of Range )  TT went out of 32NM. 
TT(Reference Lost)  The TT reference target was lost.