Interesting morning --- I purposely flew this morning to look at the several heavy rain showers in the area ---- I wanted to see how they looked on the AFS 5600T vs. the iFly 740, and my eyeballs.

Looking at a heavy cell 10 miles south of me with the eyeballs, the iFly showed the shower in the 10 mile south position, BUT, the AFS 5600T indicated that I was sitting in the middle of the shower (very smooth ride for such a condition). The AFS showed my aircraft where it was supposed to be, but the weather was being displayed 10 miles north.

It was a well-defined cell, not moving much.

I am using the uAvionix Echo, the Skyfx GPS, and sniffing my G327 TXP. The iFly gets its weather by WiFi from the uAvionix and the AFS hardwired to the uAvionix.

Can anyone explain this (rather serious) mismatch?