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36 Astro 320 and DC40 Owner’s Manual
Navigation Tools
2. Move back to the “course line to
destination” to compensate for
deviation and to get back on course.
notice
Calibrate the electronic compass
outdoors. Do not stand near objects that
inuence magnetic elds, such as cars,
buildings, or overhead power lines.
The Astro has a 3-axis electronic
compass. You should calibrate the
compass after moving long distances,
experiencing temperature changes, or
changing the batteries.
1. From the main menu, press DOG >
MENU.
2. Select Calibrate Compass > Start.
3. Follow the on-screen instructions.
You can show pointers on the compass
in order to track the direction of the
rst three dogs in your dog list.
1. From the main menu, select Tools >
Compass.
2. Press MENU.
3. Select Show Dog Pointers.
You can point the device at an object
in the distance, such as a water tower,
lock in the direction, and then navigate
to the object.
1. From the main menu, select Tools >
Sight ‘N Go.
The bearing pointer points to the
top of the compass.
2. Point the device at an object.
3. Select Lock Direction.