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Using the Highway Page
The GPS 12XL’s Highway Page provides graphic
steering guidance to a destination waypoint, with a
greater emphasis on the straight-line desired course and
the distance and direction you are off course. The bear-
ing and distance to a waypoint - along with your cur-
rent track and speed - are displayed at the top of the
screen.
As you head toward your destination, the middle of
the screen provides visual guidance to your waypoint
on a moving graphic “highway.” Your present position is
represented by the diamond in the center of the course
deviation scale. The line down the middle of the high-
way represents your desired track. As you navigate
toward a waypoint, the highway will actually move—
indicating the direction you’re off course—relative to
the position diamond on the CDI scale. When the high-
way is pointing straight up the screen, the waypoint is
directly ahead. If the destination waypoint is to the left,
the top of the highway will lead to the left, and vice
versa. To stay on course, simply steer in the direction
the highway leads (left or right) until the highway leads
straight up the page.
If you do get off the desired course by more than
1/5th of the selected CDI range, the exact distance you
are off course will be displayed where the CDI scale set-
ting normally appears. If you get too far off course (the
highway has disappeared), a message box will appear to
indicate what course to steer to get back on course. (For
information on how to set this scale, see pg. 44.) As you
approach a waypoint, a horizontal “finish line” will
move toward the bottom of the highway.
When the fin-
ish line reaches the CDI scale, you’ve arrived at your
destination.
Highway Pages
REFERENCE
34
In this example, the
Highway Page indicates
that you are off course to
the left. Steer right to get
back on course. Notice the
highway always shows the
direction to turn. If the
highway leads straight up
the page, you should con-
tinue in your current
direction.
If you get too far off
course, a message box will
appear to indicate what
course to steer to get back
on course most efficiently.
Bearing to
Waypoint
Graphic
Highway
CDI Scale
Distance to
Waypoint
User Selectable
Field
Speed Over
Ground
Track Over
Ground
Destination
Waypoint
GPS 12XL Manual Rev C 7/10/98 11:19 AM Page 34