Lowrance electronic Lowrance iFINDER Explorer - Manual (Page 32)

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When navigating to a waypoint or following a route, the Navigation
screen looks like the one shown in the next image. Your ground speed,
track, distance, course and bearing to a waypoint, all can be shown
digitally on this screen.
The current cross-track error is shown in the XTK box. This is the dis-
tance 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. It's shown on the navi-
gation page as a vertical dotted line.
Lines on either side of the present position show the current cross track
error range. The default for the cross track error range is 0.20 mile. For
example, if the present position symbol touches the right cross-track
error line, then you are 0.20 mile to the right of the desired course. You
need to steer left to return to the desired course. You can use the
ZIN or
ZOUT keys to change the cross track error range. A circular symbol il-
lustrating your destination (waypoint) appears on the screen as you
approach the waypoint.
Travel Time is the time it will take to reach a destination at the pres-
ent closing speed. Arrival Time is the local time it will be when you ar-
rive at the destination, based upon the present closing speed and track.
Navigation Page, going to cursor. Driver is headed east (a 68º track)
toward a cursor location 68º (bearing) away. The cross track error
range (white corridor) is 0.20 miles either side of the course. The
driver is headed toward the cursor location, which is 0.17 miles away.
The vehicle is basically on course (off course only 1 foot). Traveling at
34 mph. The driver will arrive at the waypoint in 18 seconds.
Waypoint
symbol
Bearing
arrow
Trail line
Cross track
error range
(off course
indicator)
Navigation
information
data boxes
Destination
name