Garmin Astro 220 Owner's Manual page 42

GpS a
ppLIcatIonS
Using the Course or Bearing Pointer
The bearing pointer and course pointer work
independently of each other. The bearing pointer
indicates the direction to your destination, and the course
pointer indicates your relationship to a course line leading
to the destination.
If the bearing pointer arrow is pointing straight ahead of
you, you are traveling directly toward your destination.
If it points any direction other than ahead, turn toward
that direction until the arrow is pointing ahead and then
continue in that direction. The bearing pointer points to
the destination, regardless of the direction you are moving.
The bearing pointer is most useful if you must move
around obstacles (lakes, private property, etc.) in your path.
If you are using the course pointer option, and you drift
away from the line of travel from your original location to
your destination, the course deviation indicator (an arrow
with horizontal dotted line) provides graphic indication
of drift (right or left) according to the scale shown at the
edge of the compass ring.

The bearing pointer always indicates the direction to
your destination from your current location.
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