Garmin GPS 120XL - Manual (Page 40)

Using the Highway Page
The GPS 120XL’s Highway Page also provides graph-
ic steering guidance to a destination, with a greater
emphasis on the straight-line desired course and the
distance and direction you are off course. The bearing
and distance to a waypoint, along with your current
track and speed are displayed at the top of the screen,
with your estimated time enroute (ETE) and velocity
made good (VMG, or the rate you are closing in on
your destination) at the bottom.
As you head toward your destination, the middle
section of the screen provides visual guidance to your
waypoint on a moving graphic “highway”. The moving
arrow just below the course deviation scale always
points to your selected waypoint relative to the direc-
tion you are moving.
Your present position is represented by the diamond
in the center of the course deviation scale. The line
down the middle of the highway 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. To stay on course, simply steer toward
the center of the highway.
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 (see the example at left). 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.
Highway Page
REFERENCE
36
In this example, the
Highway Page indicates
that you are off course to
the right. Steer left to get
back on course. Notice the
emphasis of the Highway
Page is on the desired
course.
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
Distance to
Waypoint
Estimated
Time Enroute
Velocity
Made Good
Speed Over
Ground
Track Over
Ground
Destination
Waypoint
Pointer to Waypoint
120XL Man RevB 7/10/98 10:55 AM Page 36