> 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.
That's exactly the function of adaptive pre-distortion.and is used in the ADAT ADT-200A. Scarce as that rig is, it works well. http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.123.2357&rep=rep1&type=pdf See the section entitled "The Predistortion Concept." The adaptive part of predistortion comes from the use of a dynamic algorithm like LMS -- the same, or nearly the same algorithm used in the K3's denoiser DSP function. Paul, W9AC ______________________________________________________________ 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
