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:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
