Heading Setup; Calibration Setup - Garmin Astro 220 Owner's Manual

Heading Setup

The Heading Setup page specifies the type of heading
display and the type of North reference used to calculate
a heading.
NOTE: Unless you have a good understanding of
headings and North referencing, use the default values.
To open the Heading Setup page:
Press MENU > MENU >
Heading.
• Display–sets the units used to calculate a heading
(Cardinal Letters, Degrees, or Mils).
• North Reference–provides headings based on a
true, magnetic, grid, or specific user value.
• Switch to compass heading when below–sets
the speed to switch to a compass heading when
for more than time is exceeded.
• for more than–sets the time to switch to a
compass heading.
Astro Dog Tracking System Owner's Manual
Advanced > Settings >

Calibration Setup

To calibrate the compass:
1. Press MENU > MENU >
Calibration.
2. Select Compass and follow the on-screen
instructions. For more details on compass calibration,
see page 5.
To calibrate the Altimeter:
Select Altimeter and follow the on-screen instructions.
For more details on altimeter calibration, see
Settings
Advanced > Settings >
page 30.