Eagle FishElite 640c Installation And Operation Instructions Manual page 101

Speed is the velocity you are making over the ground. If you want, you
can customize the Speed data box to display Closing Speed instead.
Closing Speed is also known as velocity made good. It is the speed you
are making toward the waypoint. For instructions, see the Customize
Page Displays entry in Sec. 8.
Track is the heading or the current direction you are traveling. Bearing
is the line-of-sight direction from your present position to the destina-
tion. No matter what direction you are steering, the Bearing window
shows the compass direction straight to the destination from your cur-
rent location. Distance shows how far it is to your destination.
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. The course line is shown on the
Navigation screen and Map Page screens as a red line.
Red course line
Magenta
trail line
Navigation
information
displays
in data boxes
Navigation Page, going to a waypoint while creating a new trail.
The cross track error range is shown on the compass rose as a white,
corridor flanking the course line. The outer edges of this white corridor
represent lines that show the current cross track error range. The de-
fault for the cross track error range is 0.20 miles.
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
keys to change the cross track error range.
Heading arrow
93
Bearing
arrow
Cross track
error range
(off course
indicator)
Destination
name
or
ZIN ZOUT