Radio

http://www.jeroennijhof.nl/wiki/index.php/Software-Defined_Radio_on_Ubuntu http://hfradio.org.uk/html/digital_modes.html http://www.ref-union.org/ http://www.eham.net/newham/modes http://gnuradio.org/redmine/projects/gnuradio/wiki/FAQ#Isnt-Python-slow-My-application-requires-blazing-speed http://radio.linux.org.au/?sectpat=SDR&ordpat=&descpat= http://www.oz9aec.net/index.php/gnu-radio/gqrx-sdr