Just want to give kudus to Dynon for there excellent service after the sale. Last year I purchased their SV-ADSB-472 module for ADS-B IN cockpit weather and traffic. It worked OK but had a few issues and not as good a range as some other products out there. Well Dynon fixed the bugs and improved the unit and offered a trade-in replacement of the older unit. I received my new unit and it was a drop-in easy 15 minute replacement at no cost. This is a first class company in my book.