The effects of adding a 1090MHz filter inline with my FlightAware Pro Stick (RTL-SDR based) resulted in an approximate increase of 10% in my aircraft spots : r/RTLSDR
FlightAware 1090 MHz ADS-B Bandpass SMA Filter– The Pi Hut
FlightAware Raspebery + ADS-B PRO USB Stick + Band-pass SMA Filter + Car Antenna – RF Coaxial Cables, Adapters, Connectors, Antennas, router mod kits, ham radio products, Alfa and cellphone boosters
The effects of adding a 1090MHz filter inline with my FlightAware Pro Stick (RTL-SDR based) resulted in an approximate increase of 10% in my aircraft spots : r/RTLSDR
New product from FlightAware: A 1090 MHz Bandpass Filter for the RTL-SDR
FlightAware Band Pass Signal Filter, Dual 978-1090 MHz | ADS-B Flight Tracking