11-14 
11 
Specifications
11.13  AIS FUNCTION 
 
(1)     Available range scale  : All range 
(2)     Activation 
Activation mode : Manual/AUTO 
(AUTO mode uses Auto-activation Zone) 
Manual Cancellation  : Any one Target 
(3)     Presentation 
Number of Activated Target  : 300 Targets 
Number of Target  : 300 Targets (sleeping target and activated target) 
Past Position    : True/Relative Display 
        Number of Dots    : 10 points 
        Display Interval Time  : 0.5/ 1/ 2/ 4 min 
        Display Interval distance : 0.1/ 0.2/ 0.5/ 1 NM 
Message    : Broadcast Message, Addressed Message 
Display mode    : TM (True Motion) / RM (Relative Motion) 
Azimuth mode    : North-up / Head-up / Course-up 
Vector mode    : True/Relative Display 
Vector Length    : Variable, 1 to 60 min. (1min. step) 
(4)     Alarm 
Auto-activation Zone  : 2 (Sector) 
Setting Range    : 0.5 to 32nm 
Alarm Indication  : Symbol on Display, Visible / Audible Alarm 
(5)     Safe Limits (CPA / TCPA) 
Setting Condition  : CPA  LIMIT    : 0.1 to 9.9 nm 
        TCPA  LIMIT  : 1 to 99 min. 
Alarm Condition  : 
Safe 
Target 
CPA  >  CPA LIMIT or 
0  > TCPA or 
TCPA  > TCPA LIMIT 
Danger 
Target 
CPA  ≦  CPA LIMIT and 
0  ≦ TCPA ≦ TCPA LIMIT 
 
Alarm Indication  : 
Status Symbol Alarm Audible
Safe Target 
〇 (White) 
OFF OFF 
Danger Target
○ (Red)  CPA/TCPA 
ON 
 
Lost Target    : Symbol on Display 
Visible / Audible Alarm 
(6)     Data Indication 
Target Data    : Simultaneous and Continuous Display for 2 Targets 
         Ship's Name, Call Sign, MMSI, Course, Speed, 
 CPA, TCPA (simple display item) 
         Ship's Name, Call Sign, MMSI, Course, Speed, 
 CPA, TCPA, Bearing, Range, Ship's Heading 
 Bearing, Rate of Turn, Latitude, Longitude, 
 Destination, Navigation Status (detail display item) 
Own Ship’s Data  : The ship's name, call sign, MMSI, course, speed, 
 ship's heading bearing, rate of turn, latitude, 
 longitude, destination, navigation status of own ship 
 can be displayed.