He came up with an example, from K1LT's website Here is .pdf of K1LT's interesting version of the RX antenna I have been thinking about.

Also take a look at his continued iterations on improving performance. It shows some of the practical reality of building such a complex antenna. Part of the reason I want the RX at the base of the antenna is to do away with all the vagaries of inversion transformers and miles of coax and the like and do what needs to be done in software. The thing that captured my imagination about SDR is the notion that to go to SSB from DSB all you have to do is set all the values of one side band to zero, IN SOFTWARE. With my old HT-37 phasing rig the side band was set to "zero" by a passive phase shift network in the radio. It worked to about 20 or 25 dB of supression and then the vagaries of discrete components (like tolerances) took over and the rest of the canceling was lost. I think the sooner you get to memory with the data the better
Also take a look at how he taught himself about digital radio
Very interesting
73