Section 4 Range and Bearing Measurement Methods  4-22 
Whenever the unit display switching button on the right side of [Interval] is clicked on, the unit 
(NM/km/sm) of the numeric value that is displayed is switched. 
 
Memo 
NM denotes nautical mile, sm denotes statute mile, and km denotes kilometre. 
 
4.6.5.1  Changing the bearing/interval of parallel index lines 
with the trackball (Track mode) 
 
 
 
 
 
 
[Changing the bearing at a clickable trisectional end segment position] 
1  Place the cursor on the lines on both sides of the lines that were created by dividing 
one of the index lines 1 to 8, which can be clicked, into 3 equal sections and click the 
button.   
The shape of the cursor changes to
   
and when the mouse button is clicked, the bearing of 
the parallel index lines can be changed. 
2  Move the cursor to the bearing to be set. 
The bearing of the parallel index lines changes together with the cursor. 
3  Click the mouse button. 
The parallel index lines are fixed. 
 
[Changing the distance at a clickable trisectional middle position] 
1  Place the cursor on the middle line of the lines that were created by dividing one of the 
index lines 1 to 8, which can be clicked, into 3 equal sections and click the button.  
The shape of the cursor changes to 
 
and when the mouse button is clicked, the interval of 
the parallel index lines can be changed. 
2  Move the cursor to the interval to be set. 
The interval of the parallel index lines changes together with the cursor. 
3  Click the mouse button. 
The parallel index lines are fixed. 
   
angle 
angle 
Dividing the line segment that can be clicked into 3 equal sections     
 
reference point