Hi all… I started reporting ADS-B data a little over a week ago and had a question regarding elevation… I’m using the Orange Pro Stick along with the FA antenna, which is mounted inside my attic… I’m 3.6 miles from KISP… The elevation at my location is 171’, and my antenna is at 190’. I’m using a package installation of PiAware 3.6.3 and using dump1090-fa. One thing I have noticed when looking at flights that land at KISP is that the chart on the side of SkyView shows the altitude of planes that landed at appx minus 200 - minus 225’… I know the elevation at KISP is 99’. Can someone explain to me why this is? I do have both my location and antenna elevation entered in my settings.