The Magellan GPS receiver displays XTE graphically on a course deviation
indicator, or CDI. The CDI displays the courseline at the center of a scale, and
your current position relative to the courseline is shown as a symbol. When
you are to the left of the courseline, the symbol is to the left of the CDI's
center.
As you travel, the navigation displays will be updated with each position fix
update. You will always know where you are in relation to your destination
and courseline. When you get within 500 feet of the leg's destination, the
receiver will display "CLOSE" at the bottom of the screen. When you are
within 200 feet of the destination, "ARRIVED" is displayed.
If you are on a multileg route, the receiver will switch legs when you cross an
imaginary line that is perpendicular to the courseline and bisects the
destination waypoint.
Entering a Waypoint
lt is not necessary to visit a place for its coordinates to be in the receiver's
memory. You can obtain coordinates from a friend or pick them up from a
map and key them into the receiver as a waypoint.
Please refer to
Tutorial
in this guide to key in a waypoint. Refer to
Reading
a Map
to get waypoint coordinates from a map.
UTM Coordinates
Another commonly used coordinate system is UTM (Universe Transverse
Mercator), which is generally found on land-based maps and quad sheets
that are produced by government map providers. On land, you may find that
UTM coordinates are easier to use than Lat/Lon.
UTM coordinates are easy to use, but since the model it is based on is
somewhat abstract, this section is a very simplified introduction to UTM.
Instead of projecting an imaginary grid of intersecting lines onto the globe,
UTM projects sections of the globe onto a flat surface. Each of these sections
is called a "zone." There are 60 zones to cover the entire earth between 84°N
and 80°S (polar areas are not described by UTM). Each zone is 6° wide as
projected from the earth's center.
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Summary of Contents for Trailblazer
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