Here's a page with radios that work for sure: http://www.rtl-sdr.com/buy-rtl-sdr-dvb-t-dongles/ http://www.rtl-sdr.com/buy-rtl-sdr-dvb-t-dongles/ By the way, t

Here's a page with radios that work for sure: http://www.rtl-sdr.com/buy-rtl-sdr-dvb-t-dongles/ http://www.rtl-sdr.com/buy-rtl-sdr-dvb-t-dongles/ By the way, these are receivers. If you want to transmit using SDR, the hardware is going to be a bit more expensive.