video: stand-alone satellite tuning with Arduino

The following one-minute video shows a breadboarded arduino tracking two different satellites and controlling a radio attached by a serial port, so as to compensate for the doppler shift of the satellite's transmissions:

http://www.youtube.com/watch?v=XgNcCGXeRyw

The code to control the radio, track the satellites, to store and retrieve the satellite elements and to signal the satellite's position in morse code are provided as Arduino libraries here:

http://code.google.com/p/qrptracker/