My Garmin Gpsr — Indoors (maybe Outdoors 2) The Ambient Pressure Is Abt .3 Inches Less Than Barometric; Why?
Perhaps you are not at sea level. It could be that either the GPS or the barometer has been corrected to give a sea-level reading.
Perhaps you are not at sea level. It could be that either the GPS or the barometer has been corrected to give a sea-level reading.