In the past week or so the number of aircraft that I have been receiving has decreased about in half.
Just checked my antenna and Pi in the attic and everything appears to be unchanged.
Has something changed in the software or settings?
I am now using 3.8.0~bpo9+1 with a Pro Stick Plus and the
FlightAware 1090 MHz ADS-B Antenna. I had been at 3.7.2 but I just updated with no obvious improvement in reception.