Garmin GPS III - Manual (Page 48)

The GPS III’s Highway Page also provides graphic steering guidance to your des-
tination, by using a graphic highway display. Along the right side of the page (top,
when display is vertical) are four user-selectable data fields that display current speed,
distance and time to next waypoint, and a bearing pointer (defaults). The bearing
pointer always points to the destination waypoint (or the next waypoint when using
a route) relative to the direction you are moving (track). If the bearing pointer points
straight ahead, you are heading directly to your destination. If the bearing pointer
points any direction other than up, turn toward the arrow until it points up—then
continue in that direction. Each data field may be configured to display any one of
twenty-three data options.
The graphic heading compass at the top of the page indicates the direction you
are moving (track). Directly below the heading compass, the highway display pro-
vides visual guidance to the destination waypoint and keeps you on your intended
course line. Your course is represented by the center line down the middle of the
graphic highway. As you head toward your destination, the highway perspective will
move to indicate your progress to the waypoint and which direction you should steer
to stay on course. If you are navigating a route, the highway display will show each
route waypoint in sequence, with the active leg indicated by the black portion of the
highway. Nearby waypoints not in the route will also be displayed. You can zoom in
or out on the highway display for a smaller or larger view. Five available settings range
from 1/4 to 4 miles, with a default setting of 1 mile.
To zoom in or out on the highway display:
1. Press the IN zoom key to decrease the scale and show a smaller view area.
2. Press the OUT zoom key to increase the scale and show a larger view area.
Your course is represented by
the highway center line. Keep
the center line in the middle
of the display to stay on
course.
When using a route, the
Highway Page will guide you
to each waypoint along the
route.
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REFERENCE
Highway Page
GPS III A 7/21/98 8:51 AM Page 40