Performance Graphs/Web Portal installed by automated installation script by J Prochazka:
ADS-B Receiver Project Setup Scripts
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On the skyview map
Messages/sec
Number of Aircrafts
On map, with the help of 3 circles (at 100, 150, and 200 nm), you can estimate mximum distance you get an aircraft
If you install Performance Graphs (Web Portal) by J Prochazka’s automated install scripts, you can get many graphs giving signal info from your Pi.