Lowrance 5150c 操作ガイド

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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. 

 

 

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. 

A circular symbol depicting your destination (waypoint) appears on the 

screen as you approach the waypoint, as shown on the screen in the 

preceding figure. 
Travel Time is the time that it will take to reach your destination at 

your present closing speed. (You can also customize the time data box 

to show Arrival Time instead. Arrival Time is the local time it will be 

when you arrive at the destination, based upon your present closing 

speed and track.)