Wayne is correct here. If you don't use a principled approach to finding the the best tuning solution, there are excellent binary searches that have roots in game theory that are extremely good. The optimum is to marry them both. The most successful commercial (militairy) algroithms start with a phase-amplitude transfer function inversion to get very close to a solution followed by a binary search to the final solution.
-----Original Message----- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Andy Durbin Sent: Sunday, April 7, 2019 8:20 PM To: elecraft@mailman.qth.net Subject: [Elecraft] Automatic tuner implementation "It's all about "pruning the search tree," to borrow a term from game theory." That always struck me as being a bit like trying to whack a pinata while blindfolded. Why is it not possible to measure the complex impedance and compute the solution? That should be a lot faster than any iterative method. Sure, it needs a better detector but isn't Elecraft about elegant solutions? I'll probably find the answer for myself in a while as it's on the list of things to try with my Kenwood/Elecraft interface (I have LP-100A complex load impedance available). Pointers to any failed or successful attempts to do this would be appreciated. 73, Andy, k3wyc ______________________________________________________________ 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 --- This email has been checked for viruses by AVG. https://www.avg.com ______________________________________________________________ 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
