Not sure what you are referring to regarding proprietary issues between Garmin and Avidyne.
Could you expand on that question a bit?
Hi Skid,
I want to know if anyone has had connectivity, otherwise any glitches specifically between Avidyne Nav and Garmin EFIS.
To use the word “proprietary” might imply intent.
I have an IFD540 and am in the process of choosing a PFD for a panel project.