John, that is a common question. The KAT3 is providing a 1:1 SWR between the KAT3 and the PA *inside* the K3 so the K3's PA is 'seeing' the correct load. The KAT3 cannot change the impedance of the antenna presented to the ANT connector.
You didn't say how much coax ran from the K3 to the Palstar. For an accurate comparison it should be zero (use an adapter) or at most an couple of inches of coax. You can replace the antenna with a good dummy load, and they should read much closer, although most dummy loads have some error as well, nor are SWR meters precision instruments; they don't need to be for efficient transmission line operation at H.F. Ron AC7AC -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of John Dziedziejko Sent: 02 January 2012 04:13 To: [email protected] Subject: [Elecraft] K3 Internal Tuner Question I installed the KAT3 over the weekend and the construction and calibration was successful. This evening I hooked everything back up to check reception, tuning and swr. I have it set to AUTO, when I tap the ATU TUNE switch the tuner does its thing and I read a 1.0:1 swr on the K3 meter. I have a Palstar Wattmeter installed between the K3 and the antenna and for some reason I am getting a high swr on the Palstar meter of 5:1 and don't understand why. I have a multiband vertical antenna with a 4:1 Unun at the base of the antenna. Am I missing something here? A little hand holding would be appreciated. Regards, John W9QP ______________________________________________________________ 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 __________ Information from ESET NOD32 Antivirus, version of virus signature database 6759 (20120101) __________ The message was checked by ESET NOD32 Antivirus. http://www.eset.com __________ Information from ESET NOD32 Antivirus, version of virus signature database 6761 (20120102) __________ The message was checked by ESET NOD32 Antivirus. http://www.eset.com ______________________________________________________________ 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 ______________________________________________________________ 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
