= ADS-B
ADS-B is a positioning system for planes. See [[https://en.wikipedia.org/wiki/Automatic_dependent_surveillance_%E2%80%93_broadcast|Wikipedia]].
For GNU Radio exists the module ''gr-air-modes'' which contains the command line tool ''modes_rx'' which can be used to receive ADS-B data. 
''sudo apt-get install gr-air-modes''

''modes_rx -s osmocom -d''