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I finally had a chance to get out to the airport. After doing some more research on the 480, I recalibrated the Resolver in the 480, and that seems to have done the trick. The 5500 seems happy now...

Thanks for the suggestions, it’ll be a week until I can get out to the plane to check it out some more…I’ll let you know…..

Thanks for the reply, the problem I’m having is that the message never goes away, ie it never syncs, could be an antenna issue but all connections so far look ok….

Hey Guys,

I recently purchased a plane with an Advanced 5500 and a Garmin GNS480W. I have a “GPS INTEGRITY SVN:GNAV1” showing on my Advanced EFIS page and “GPS INTEGRITY” on my moving map on the...