An SDR receiver for $20? Yes!
This looks like a lot of fun, and the price is certainly right! It uses the popular (and cheap!) DVB-T Digital TV USB Dongle Stick.
From the video description:
Download it here: http://spench.net/r/USRP_Interfaces
Compatible devices should be: ezcap, Hama nano & Terratec NOXON (get the first two as it has a better tuner – the Elonics 4000, same as FUNcube Dongle, broadest frequency range: 64-1700 MHz).
This all started here (info & code): http://sdr.osmocom.org/trac/wiki/rtl-sdr
My ExtIO plugin also supports all USRPs, the FUNcube Dongle and network streaming using BorIP (see it here: http://www.youtube.com/watch?v=_2PaSeR-4Ck). You can also send the received baseband data over the network to GNU Radio using the UDP Source block.
I can’t seem to get mine to work. Its the EZCAP DVB-T FM DAB model.