Garmin International Inc 01748 Manuel D’Utilisation
Astro
and DC 40 Owner’s Manual
Settings
heading.
NOTE: Unless you have a good
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 >
Advanced > Settings > Heading.
Display–sets the units used to
calculate a heading (Cardinal
Letters, Degrees, or Mils).
North Reference–provides
North Reference–provides
headings based on a true,
magnetic, grid, or specific user
value.
Switch to compass heading
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
for more than–sets the time to
switch to a compass heading.
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Calibration Setup
Redundancy
?
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 5
.
To calibrate the Altimeter:
Select Altimeter and follow the
on-screen instructions. For more
details on altimeter calibration, see
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