Is there a method to adjust altitude settings between G3X and a G5 without adjustment from Avionic shop. My G5 depicts 40’ higher than my G3X.
If your avionics shop hooks up pitot/static and calibrates them they should be within 5-10'. Can't say I've seen a software update change the cal but I suppose it's possible.
The wizards at Garmin should program logic into the G5 so that when the GSU-25 ADHRS is providing data to the G3X, the G5's internal ADHRS is not used, thus resolving the altitude discrepancy between the G5 and the G3X. If the GSU-25 goes offline, the G5 becomes fully functional.
Confucius say, "Man with two watches, never know correct time.”
Skylor
That would defeat the purpose of having an independent backup?