I dunno, seems more like a solution in search of a problem to me.... 73, Ross N4RP
On 5/12/2011 12:58 PM, Guy Olinger K2AV wrote: > That would be a KEEN addition to a K3/KPA500 combo. Put it way out > there and give the industry yet another bone-breaking kick in the *ss. > > On Thu, May 12, 2011 at 12:44 PM, Geoffrey Mackenzie-Kennedy > <gm4...@btinternet.com> wrote: >> Hello Guy, >> >> The short answer to the first part of your question is yes, and the generic >> term for such a scheme is Predistortion. A term that has been used to >> identify a Predistortion scheme which employ digital techniques is a >> "Digital Predistortion Linearizer" (DPL), and its use can bring about a >> significant reduction in the level of IMD being transmitted compared to a >> classic class AB design. Unfortunately the relevant data that I have is >> packed ready to leave for Luxembourg. >> >> I don't know how easy or difficult DPL would be to implement in the K3, or >> in any other "already designed" rig which employs DSP, but I suspect that >> somebody else reading this could tell you. >> >> 73, >> Geoff >> GM4ESD >> >> >> >> On Thursday, May 12, 2011 at 4:15 PM, Guy Olinger K2AV wrote: >> >>> I would like to know if some kind of feedback (maybe complicated) >>> could bring about a quantum leap in linearity, like sampling the >>> output of the amp and feeding that back to the K3 to digitally >>> pre-alter the audio to cancel the distortion going out. >> >> >> >> >> >> >> >> > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html -- FCC Section 97.313(a) “At all times, an amateur station must use the minimum transmitter power necessary to carry out the desired communications.” ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
