Lowrance electronic 5200C - Manual (Page 38)

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When navigating to a waypoint your ground speed, track, distance and
bearing to waypoint, and course are all shown digitally on this screen.
NOTE:
Remember, when the Speed, Track and Position information dis-
plays are flashing, satellite lock has not been achieved and no posi-
tion fix has been determined. A question mark will also flash on the
present position arrow in the center of the compass rose.
Speed (ground speed) is the velocity you are making over the ground. If
you wish, you can customize the Speed data box to display Closing
Speed instead. Closing Speed is also known as velocity made good. It's
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 posi-
tion to the destination. No matter what direction you are steering, the
Bearing data box shows the compass direction straight to the destina-
tion 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.