Garmin Astro 220 Setup Manual - Page 2

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Garmin Astro 220 Setup Manual
This guide takes you through the basic steps for starting up and
using your Astro System for the first time. The Astro 220 Owner's
Manual provides detailed instructions for using your Astro System
in the field.
Install batteries in the Astro
➊
220
1.
Remove the battery compartment cover from
the back of the Astro 220 and insert two AA
batteries into the compartment, observing
polarity markings in the compartment.
2.
Be certain the VHF antenna is attached and
snug.
Turn on the Astro 220 and
➋
DC 20 to allow them to initialize
1.
Take both units outdoors to get an
unobstructed view of overhead GPS satellites to determine
their locations.
2.
Press down and hold the Astro 220 POWER key, located
between the two antennas on the top of the unit, until the
unit turns on.
3.
Press and hold the POWER key on the end of the DC 20
until the red LED illuminates.
4.
The Dog Tracker page with a status bar at the
top appears. When three or more GPS signal
strength bars are filled, the units determine its
location. This should take no more than two
VHF
antenna
minutes the first time you initialize the unit.
After this, it should take seconds.

Calibrate the Compass

➌
Before tracking your dog, it is important to
calibrate the Astro 220 internal compass to
ensure accuracy. Do this outdoors and away
from large metal objects, such as automobiles and buildings.
1.
Press DOG to open the Dog Tracker page.
2.
Press MENU, use the Arrow (ROCKER) key to select Calibrate
Compass and press ENT (ENTER) to show the
Compass Calibration page.
3.
Follow the calibration Wizard instructions for
calibrating the compass by slowly rotating it in a
level position. Press ENTER to start calibration and ENTER
again when calibration is completed. It is recommended that
you calibrate the compass after periods of storage, battery
change, or temperature changes exceeding 20
Status Bar
Dog Tracker Page
F.
o