Lowrance 3500c 操作指南

29 

the speed that you're making toward the waypoint. For instructions, 
see the Customize Page Displays entry in Sec. 5.) 

Track is the heading, or the current direction you are actually travel-
ing. Bearing is the direction of a line-of-sight from your present position 
to the destination. No matter what direction you are steering, the Bear-
ing data box shows the compass direction straight to the destination 
from your location at the moment. Distance shows how far it is to the 
waypoint you're navigating toward. 

The Off Course window shows the current cross track error. This shows 
the distance you are off-course to the side of the desired course line. The 
course line is an imaginary line drawn from your position when you 
started navigating to the destination waypoint. The course line is shown on 
the Navigation Page screen (and the Map Page screen) as a dotted line. 

 

 

Navigation Page, going to a waypoint while creating a new trail. 

The cross track error range is shown on the compass rose as a wide, 
white, corridor enclosing the course line. The outer edges of this white 
corridor represent lines that show the current cross track error range. 
The default for the cross track error range is 0.20 miles. 

For example, if the present position symbol touches the right cross 
track error line, then you are 0.20 miles to the right of the desired 
course. You need to steer left to return to the desired course. You can 
use the 

 or 

 keys to change the cross track error range.