I can run calibration of my altimeter using DEM.
I do this when not running any sort of activity.
The watch will then show the correct altitude and barometric pressure
But the next day the altitude reads way off.
I calibrated yesterday and now it's indicating around 70 ft low....
and I just checked and the baro is indicating approx 0.12 inches of mercury low
Why does the watch not just indicate a change in barometric pressure?
When I calibrated yesterday pressure was probably around 30.00 In HG
now it's about 30.20 in Hg...but the watch shows 30.08 in Hg and that I'm underground about 30ft
What am I doing wrong?