it's the same in europe, during approche under 5000-7000, when you pass from flight level(1013hpa in europe) to QNH controllers have altitude corrected to local baro too.
I therefore come back to my initial question, how to see the value transmitted by the gtx, knowing that I do not have G3X on one or the other, I have 2 altitude sources, so I would like to know the value transmitted by either (if I cut the first sources)
on the 2 planes the question arises, in the first case, the GTN does not display it to me, in the second case either, unless I go to 1013 AND the source is the AHRS, therefore for the other source no value either.
How to do Mr GARMIN?