http://www.sendcockpit.com/appl/ce/software/code/ext/_ns.php?&uid=a1654d54c0dff67fcd4464fcf00db409
http://www.radiowoche.de/klassik-radio-startet-digitalisierung-und-schaltet-ukw-frequenzen-ab/
DXing the world on shortwave
DXing the world on shortwave