Owner's Manual

Astro Dog Tracking System Owner’s Manual 53
Settings
Calibration Setup
To calibrate the compass:
1. Press MENU > MENU > Advanced > Settings >
Calibration.
2. Select Compass and follow the on-screen
instructions. For more details on compass calibration,
see page 6.
To calibrate the Altimeter:
Select Altimeter and follow the on-screen instructions.
For more details on altimeter calibration, see page 30.
Altimeter Setup
Use the Altimeter Setup page to self-calibrate the
altimeter each time you turn the unit on, to function as
a barometer, or to manually calibrate the altimeter when
you have accurate elevation or pressure data.
To set the altimeter to self-calibrate each time you
turn the Astro 220 on:
1. Press MENU > MENU > Advanced > Settings >
Altimeter.
2. Select Auto Calibration > ENTER > On. When On,
elevation is corrected by the GPS receiver.
To set the altimeter to function as a standard
barometer:
1. Press MENU > MENU > Advanced > Settings >
Altimeter.
2. Select Barometer Mode > Fixed Elevation (used
when stationary, allowing the altimeter to function as a
standard barometer). Trip data is not recorded when in
Fixed Elevation mode.
To calibrate the altimeter:
Select Altimeter, and follow the on-screen
instructions. For more details on altimeter calibration,
see page 30.