Garmin International Inc 01748 Manuel D’Utilisation

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Astro and DC 40 Owner’s Manual
GPS Applications
3.  Select Apply > OK to reset the 
selected options.
Calibrating the Altimeter
1.  Go to a location where the 
elevation or barometric pressure is 
known
2.  On the Altimeter page, press 
MENU > Calibrate Altimeter.
3.  Select Yes if you know the 
elevation, select No > Yes if you 
know the barometric pressure.
4.  Enter the elevation or barometric 
pressure > OK.
Using Tracks
A track is a recording of your path and 
of the path of your dogs. The track 
log contains information about points 
along the recorded path, including 
time, location, and elevation for each 
point.
The percentage of memory used by the 
current track log appears at the top of 
the Tracks page. After you clear the 
track log, it shows 0%.
To open the Tracks page:
  Press MENU > MENU > 
Advanced > GPS Applications > 
Tracks.
Tracks Page
Track Log Setup 
Page
To clear the track log:
  On the Track page, select Clear > 
Yes.