
Astro and DC 40 Owner’s Manual
GPS Applications
4. Set the zoom range on the vertical
axis.
5. Set the zoom range on the
horizontal axis.
resetting the Altimeter
1. From the main menu, select
Advanced
>
GPS Applications
>
Altimeter
.
2. Press
MENU
.
3. Select
Reset
.
4. Select the items you want to reset
or delete.
5. Select
Apply
.
Calibrating the Altimeter
1. Go to a location where the elevation
or barometric pressure is known.
2. From the main menu, select
Advanced
>
GPS Applications
>
Altimeter
.
3. Press
MENU
.
4. Select
Calibrate Altimeter
.
5. Follow the on-screen instructions.
Tracks
A track is a recording of your path
and of the path of your dog. The track
log contains information about points
along the recorded path, including
time, location, and elevation for each
point.
Customizing Your Track Log
1. From the main menu, select
Advanced
>
GPS Applications
>
Tracks
>
Setup
.
2. Select an option:
Select
Wrap When Full
to
replace the oldest data with new
data when the track log is full.
Select a
Record Method
:
Select
Distance
, and enter a
distance interval.
Select
Time
, and enter a
time interval.
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