This morning I realized that somehow I had failed to listen to the latest SolderSmoke episode (#135), so during my somewhat longer than usual commute (traffic) I set it going and had a listen. And wow, some really great stuff, especially the report by Bob Crane, W8SX on the Four Days in May (FDIM) QRP conference last month. One thing that caught my attention was a presentation by Ward Harriman, AE6TY, on “Software Defined Radio Without the Math”. Since that is a topic I’ve always been interested in, when I got to work, I looked up his website, and found that it’s a great treasure trove of information. Like Jeri Ellsworth’s recent project, Ward has designed an SDR which doesn’t require a PC to work, but instead of using an FPGA like Jeri, he chose to use a dsPIC processor. He’s also got the schematic and PCB files online, and the whole build is documented in a series of articles for QRP Quarterly that you can download from his website. Awesome stuff! Check it out.

AE6TY on Software Defined Radio!.