Great data, Jack. We've been testing this, too, and we know why the K3's readings differ.
A firmware change will be made to improve the accuracy in general. But part of the difference on the higher bands is due to strays in the KAT3 module. These strays can be tuned out by the KAT3 itself, thus presenting the correct load to the K3 internally. But an external instrument is on the other side of the KAT3 and thus sees a slightly different match. We'll post additional details soon. Meanwhile, no one need worry about this apparent discrepancy. The ATU is cancelling its own strays, and the SWR bridge is correctly reporting the load presented to the transceiver internally, which is the important thing when matching the rig to its load. 73, Wayne N6KR ---- http://www.elecraft.com On Nov 8, 2009, at 7:18 PM, "Edward Dickinson, III" <softb...@windstream.net > wrote: > _____ > > From: Jack Smith [mailto:jack.sm...@cliftonlaboratories.com] > Sent: Sunday, November 08, 2009 10:00 PM > To: Edward Dickinson, III > Subject: Re: [Elecraft] K3 SWR Accuracy - reprise > > Dick: > > http://www.cliftonlaboratories.com/swr_accuracy.htm > > I posted a message to the Elecraft reflector about the page being > available > but it has not shown up after an hour and a half. > > Jack K8ZOA > > > Edward Dickinson, III wrote: > > Hi Jack. > > > > I extend invitation to apply your expertise regarding the matter being > > addressed in above referenced discussion. > > > > > > Best regards, > > > > Dick - KA5KKT > > > > > > > > > > ______________________________________________________________ > 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 ______________________________________________________________ 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
