A GNU Radio out-of-tree (OOT) module to demodulate and decode Automatic Dependent Surveillance Broadcast (ADS-B) messages. To use the built-in web app, run python -m gnuradio.adsb.webserver and open a browser to http://127.0.0.1:5000. Example gnuradio-companion flowgraphs are installed with the package and can be found in: - (Linux/macOS) $CONDA_PREFIX/share/gnuradio/examples/adsb - (Windows) %CONDA_PREFIX%\share\gnuradio\examples\adsb