Section 2 Name and Function of Each Unit 2-22
Cargo Category When the setting of the type of a ship is
2X, 4X, 6X, 7X, 8X or 9X, the digit shown at the end of the code represents
the cargo/condition.
X1 Category X(DG/HS/MP)
X2 Category Y(DG/HS/MP)
X3 Category Z(DG/HS/MP)
X4 Category OS(DG/HS/MP)
X9 No Additional Information
X0 All Ships of This Type
Displays the bearing of an AIS target.
Displays the distance to an AIS target.
COG or CSE Displays the course of an AIS target. Displayed as "COG" in the course
over the ground mode and "CSE" in the course through the water mode.
SOG or STW Displays the ship speed of an AIS target. Displayed as "SOG" in the speed
over the ground mode and "STW" in the speed through the water mode.
Displays the closest approach distance to an AIS target.
Displays the time to reach the closest approach point to an AIS target.
Displays the bow crossing range of an AIS target.
Displays the bow crossing time of an AIS target.
Displays the heading of an AIS target.
Displays the turning speed of an AIS target.
Displays the position of an AIS target.
Position Accuracy When the position-fix accuracy of an AIS target is low, [>10m] is displayed.
When the position-fix accuracy of an AIS target is high, [<10m] is
Position Sensor Displays the type of the position sensor used by an AIS target.
0: Not Defined
1: GPS
2: GLONASS
3: GPS/GLONASS
4: Loran-C
5: Chayka
6: Integrated Navigation System
7: Surveyed
8: Galileo
Status Status of an AIS target
• Sleeping
• Activated
• Lost
• Danger
Source AIS information source
• Direct
• Repeated