Originally Posted by
jimjim1
If you set a filter to say Altitude 45-65,000 ft (65 is max available which may prevent the inclusion of some of the balloons) the balloons usually show up very clearly. Perhaps alternative ADSB sites may have more flexible filters?
I had a look and ADSB exchange allows 5 digit filters so max is 99,999. This though may not be relevant to the google Project Loon since at the time I looked there were none over 65,000ft anyway.