Astro and DC 40 Owner’s Manual
GPS Applications
The course pointer provides an
indication of drift (right or left)
according to the scale shown at the
edge of the compass ring. The scale
refers to the distance between dots on
the course deviation indicator. The
course line to your destination is based
on your original starting point.
Scale
Course Pointer
Course
lne to
destnaton
Bearng to
destnaton
Course
devaton
ndcator
Move back to the “course line to
destination” to compensate for
deviation and to get back on course.
This is most useful if you are
navigating on water or where there
are no major obstacles in your path. It
also helps you avoid hazards to either
side of the course, such as shoals or
submerged rocks.
Changing Compass Settings
To change Compass settings:
1. On the Compass page, press
MENU
.
2. Select an option >
ENTER
:
Sight ‘N Go
–allows you to
navigate to an object within
your sight by pointing the unit
).
Stop
(or
Resume
)
Navigation
–
stops or resumes your current
navigation.
Recalculate
–recalculates the
path to a destination.
Course or Bearing Pointer
–
auto routes between the course
pointer and the bearing pointer.
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