Andrew Gideon wrote:


How "particular" to an AP are DGs?


I found at least a partial answer. When ordering an STEC AP, one specifies
the DG. The STEC is "made to work" (whatever that means).

The avionics person to whom I spoke told me that he'd ordered STEC APs
configured to get HEADING information from DGs previously speaking to ARC
APs. That's my precise upgrade path, so I'm happy.

- Andrew