About the coverage

[biekerc]

Two other filter option, even though I would go with @wiedehopf suggestion:

Announcing the new 1090 MHz only bandpass filter!

FlightAware is excited to announce the availability of a 1090 MHz-only bandpass filter for the ADS-B community outside of North America. This is something many of you have asked for. The filter we’ve offered in the past wasn’t great at blocking GSM mobile phone interference that can be found outside of North America. This new filter is an economical bandpass filter option that provides better attenuation of 950 MHz GSM. Those of you building PiAware sites in urban areas or other areas with 950 M…

There is an earlier version, coloured in lighter blue, that is now sold as an 978&1090.

And this relatively new one:

AirNav RadarBox 1090 MHz ADS-B Filter: Amazon.co.uk: Electronics & Photo