If it also happens with a dummy load, and the antenna analyzers shows the same graph as before for R, X, then it is likely one of the connectors between the KPA1500 output and the antenna. The one such problem I had was old jumper I had put in to add an SWR bridge/monitor. It looked okay, and was finger tight, but when I replaced it in an A/B test, the problem went away.
The other time, the antenna had changed its impedance curve, but was still 'okay' and the tuner was trying to retune for it. 73 John N5CQ -----Original Message----- From: elecraft-boun...@mailman.qth.net <elecraft-boun...@mailman.qth.net> On Behalf Of Jim Brown Sent: Friday, September 27, 2019 4:19 AM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] KPA-1500 failing on 160...AGAIN! On 9/26/2019 10:26 PM, Peter Dougherty wrote: > Any idea where to start looking here? And if it's a vertical, what about the radial system? 73, Jim K9YC ______________________________________________________________ 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 Message delivered to woyb10...@outlook.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 Message delivered to arch...@mail-archive.com
