Section 6 Target Tracking and AIS  6-34 
BRG  True direction 
*  In standard mode, this item is not displayed. 
Range  Distance 
*  In standard mode, this item is not displayed. 
Heading  Heading 
*  In standard mode, this item is not displayed. 
ROT  Rate of turn 
*  In standard mode, this item is not displayed. 
*  The display range of ROT is 0.00°/min to 697.50°/min. In the case of Over, the 
value will be greater. In the case of ±5/30s, it indicates that ±127 is received.   
At this time, only turning direction indicated on the turn indicator is reliable. 
The turn indicator is displayed as a straight line normal to the heading direction 
on the AIS symbol. 
(Refer to "6.3 Displaying Symbols.") 
POSN  Latitude/longitude 
*  In standard mode, this item is not displayed. 
>10m or <10m  >10m: Low positioning accuracy 
<10m: High positioning accuracy 
*  In standard mode, this item is not displayed. 
Destination  Destination 
*  In standard mode, this item is not displayed. 
Navigation 
Status 
The status is displayed by number. 
For the details, refer to "Navigation Status" table. 
* In standard mode, this item is not displayed. 
 
In the extended mode, a display area equivalent to two standard mode areas is used. 
 
 
Navigation Status 
 
Status 
0: Under Way Using Engine 
3: Restricted Manoeuvrability 
4: Constrained by Her Draught