Hey, This is not a Radio per se. It's a modem chip built in the style of a modern Graphics Card (GPU). It's effectively a DSP chip under another name. It requires the frontend and ADC, from an rtlsdr for example, before it can do anything. This kind of device takes the fun out of SDR in some respects. The wonderful thing about SDR as we know it is that modern computers are fast enough to do all the processing on the CPU in real time (for many applications). This makes developing software etc far easier since you can use languages and tools that you are familiar with, are easily debuggable and don't require as much specialist knowledge. That said, it might require less effort to program than one of the FPGA's onboard an Ettus or something like that so for embedded systems it's an attractive proposition. You might one day be able to flash your phone to make it into a TV receiver or something like that. Interesting stuff. On 2 May 2013, at 05:19, Jay Salsburg <jsalsburg(a)bellsouth.net> wrote: