4ņ1 
4.1  MEASUREMENT USING THE CURSOR 
WITH THE TRACKBALL 
 
  Procedure    1  Check the target echoes on the radar display. 
 
2  Move the cursor mark to a target by the trackball. 
 
The    CURSOR    on  the  radar  display  indicates  the  bearing  and  range  of  the  target.   
The range is a distance from own ship’s position. 
 
 
CURSOR (     ) 
TRUE 45.0q:  True bearing of the cursor relative to own ship 
5.0nm:  Range between the cursor and own ship 
REL 45.0q:  Relative bearing of the cursor relative to own ship 
 
Target
 Cursor
45.0°
180
0
 90270
6.00NM
Bearing and range from the
own ship䇻s position to target in this figure:
    True bearing  45.0 r
    Range              6.00 NM
Own ship䇻s position
 
Figure 4.1