In retrospect, I should have emphasized more that the presentation focused on the HARDWARE to get an quadrature (I & Q signals) so that the software side (who knows--perhaps a later presentation) can do its magic.
...in the order they occured in the presentation...
by Scotty Cowling WA2DFI, from 2008 Dayton Presentation ”Hands-On Software Defiend Radio”
or of a realization of any radio
the rotating disk with the blue blob
If you do nothing else, read this paper. You will learn things!
support for, & info about, the Softrock series of SDR circuits
the Softrock store--kits are listed for sale only when supplies are available
Robby WB5RVZ provides excellent build documents, check out his other assembly manuals
you gotta have something to decode those I / Q signals (other lists exist, too)
73 de Daniel KB3MUN