Magellan Trailblazer XL, Reference Manual

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CDI
Icon
CDI
Centerline
Destination
Landmark Name
Bearing to
Destination
Heading
CDI
Distance to
Destination
Speed
CDI Scale
south is 180°.
44
GPS Navigation
XTE (cross track error) is the distance to the left or right of the planned path. Keeping
the XTE to a minimum helps maintain the most direct (and fastest) path to your desti-
nation. Look at the illustration below. The boat is to the left of the courseline. The
arrow between the courseline and the boat shows XTE; the boater has to steer right to
"close" the XTE to get the destination (the buoy) faster.
The CDI (course deviation indicator) is a graphic representation of XTE. The straight
line at the center of the course marker, and the current location is the icon to the left
of the marker.
When you are on course, the icon is over the courseline.
The number
next to the CDI is the CDI scale, or the distance represented from the courseline to
either end of the CDI. (Remember that this scale can be changed by pressing CLEAR
and the UP/DOWN ARROWs.)
Bearing (BRG) is a measurement of direction in relation to north (either true or mag-
netic, whichever you selected in Setup), measured in degrees and in a clockwise direc-
tion. North is 0°;