At the October 5th, 2011 meeting our program was a fascinating presentation about Software Defined Radios (SDR) by member Howard W1HMB and guest John W7FU. Click here to read the program material. You can follow its links to much more information.
Many thanks to Howard and John!
Update: Here is the latest High-Performance Software-Defined Radio article from CQ Magazine, Nov 2011, by PNW ham Jeremy McDermond NH6Z. He is the author of the Mac SDR software and is often seen at technical gatherings around the Pacific Northwest area.