Does anyone have this problem? I was having problems on the low end of 6 meters. VSWR was all over the place! The K3 would always measure a 1.2 :1, the KPA500 measured 1.5 to one and the KAT500 wouldn't match my 6 meter beam. I agree that there was a problem with my Hygain 66DX6 but even on my Bird dummy load the SWR measurements were off. On Sunday, I re-tuned my 6 meter beam. I was able to match the antenna but the VSWR on the K3 was still all over the map.
I remember when I was building the KPA500 that there was a 4" twisted wire from the PA board to the RF out jack. A short twisted wire as a transmission line on the HF bands is probably OK but On 6 meters, the inductance in twisted wire, I'm sure, will exhibit loss. I replace it the wire with a 4" length of RG58U. Now all 3 SWR readings agree and the VSWR is 1.1:1. Jack WA9FVP ----- Jack WA9FVP Sent from my TRS-80 :-) -- View this message in context: http://elecraft.365791.n2.nabble.com/K3-KPA500-VSWR-on-6m-tp7610474.html Sent from the Elecraft mailing list archive at Nabble.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
