Is anyone aware of a data field (or widget) that would show the elevation for current GPS coordinates based on DEM from the installed topographic map?
This would be very helpful in giving an idea of potential error of the elevation being reported by the GPS when hiking. You could see what the GPS reports and in the next data field see what the DEM states.
If under system settings when calibrating altimeter based on "GPS", there was an additional choice to calibrate based on "GPS+Map DEM" there may also more accuracy.