by Clemens Valens @ elektormagazine.com
The new SDR board was created by Burkhard Kainka, the designer who also did the first SDR project. The antenna preselector of the original board has been removed while the CY27EE16 programmable oscillator was replaced by the Si5351 from Silicon Labs. The Arduino board takes over the functions of the FT232R USB interface in the original design.
Software Defined Radio (SDR) shield for Arduino – [Link]