There is also the issue that the various AGC's may be varying the amplitude, so the process would have to address both instant amplitude and phase to affect cancellation. Should be able to program that, though. How hard to code, who knows???
73, Guy. On Sun, Nov 28, 2010 at 1:15 PM, Edward R. Cole <[email protected]> wrote: > OK, I realize the Timewave and MFJ noise cancellers operate at RF and > not AF...But I was thinking of the amazing noise reduction that SDR's > accomplish in the digital relm. I understand it may not be that > simple. But sometimes asking the question gets new thinking going. > > For example the second IF of 15-KHz is digitized and run thru FIR > filters; could two separate digitized data streams from the two > receivers be added out of phase digitally? > > > 73, Ed - KL7UW, WD2XSH/45 > ====================================== > BP40IQ 500 KHz - 10-GHz www.kl7uw.com > EME: 144-800*w, 432-100w, 1296-testing*, 3400-winter? > DUBUS Magazine USA Rep [email protected] > ====================================== > *temp not in service > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[email protected] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
