Since installation ~30 or more days ago all was fine. Displayed on DUMP1090 - 8/36 (pi-flighttracker.local)​ were some 30 to 40 aircraft being tracked. Now today only 1 to may be 6 are being tracked as shown on map and for very short period of time. However, going to FR24 site and looking at map with filter for my receiver I see what I would expect - 20 to 30 aircraft. It's feeding 20-30 at any point in time, but GUI looking at DUMP1089 on Rpi shows very few and quicky disappear. Thanks.