wcooper31

Solution found: It was a GAMA setting that was not correctly selected when the GTN 750 was installed. It took 30 seconds to make the fix by going into the 750 and then the GPS worked with the KFC 225.

Thanks for the reply. On a ILS approach, everything works fine. The problem is once I select the CDI to GPS on the GTN 750, then I can no longer use the auto pilot in NAV mode (I must select HDG on the auto pilot and spin the bug on the HSI to follow the magenta line on the GTN 750. I agree, this must be an install issue, but wondered if someone knows if it is a simple setting that was overlooked or is it something more major than that.

I just upgraded from GNS 530 + 430 to a GTN 750. I have a KAP 225 auto pilot. When plotting a Direct To course with the GPS and then pressing the NAV button on the auto pilot, nothing happens. I can get the NAV button to work when I use the VLOC to see a VOR or ILS freq, but not in GPS mode. If I want to fly a GPS route, then I use the Heading Bug and select HDG on the auto pilot and self-correct for wind/drift. Sarasota Avionics is where the work was done and they are talking with Garmin to troubleshoot. Has anyone come across this situation before?

Make sure you have an iPad Air and not the old iPad, like me, otherwise the Stratus II won't work well.