
Astro and DC 40 Owner’s Manual
4
Customizing Your Device
Data Field
Description
Vertical Speed
Your rate of altitude
gain or loss over time.
Vert. Speed to
Dest.
The measurement of
your rate of ascent
or descent to a
predetermined altitude.
Waypoint at Dest. The last point on
a route to your
destination.
Waypoint at Next The next point on your
route.