Hi guys, I have a problem with my K3 reading 5.0:1 or more SWR on tune into a 50 ohm load. I was alerted to this problem when I could not get the same SWR my analyser was showing for a new antenna, and quickly discovered the K3 had developed a fault on all bands.
The K3 shows a high SWR into a pure 50 ohm load or resonant antenna on both Ant 1 or Ant 2. I find that if I use an external SWR meter and connect the K3 to a dummy load through that, the SWR shows high on both the K3 and the SWR meter. I have checked the dummy load and patch lead. So, at a guess, the SWR reading on the K3 is correct and there is something wrong in the output stage of my K3. I have the ATU module and find this is able to tune back to 1.0:1, but I'm pretty sure that's treating the symptom rather than the cause! Any suggestions or advice on fault-finding this would be most welcome; sadly, I'm off the air! Many thanks, Michael G7VJR K3/100 no. 1904 KXV3 KAT3 KRX3 KDVR3 -- View this message in context: http://elecraft.365791.n2.nabble.com/K3-output-stage-high-SWR-fault-finding-tp7446109p7446109.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
