Mark I have not seen your problem so I tend to discount your explanation. It sounds like something is breaking down. Perhaps bad coax, antenna, insulator, or lightning arrestor. You could test with a TDR (Time Domain Reflectometer) or Hipot tester. If you lack the equipment connect a dummy load to the K3 and test. If that passes your problem is not in the K3. 73 Fred, AE6QL
-----Original Message----- >From: Mark N2QT via Elecraft <[email protected]> >Sent: Aug 19, 2014 12:15 PM >To: "[email protected]" <[email protected]> >Subject: [Elecraft] K3 false SWR indication with SSB > >My k3 flashes a higher swr indication with ssb voice peaks than with a steady >carrier. > >If using an antenna with 1:1 SWR the bar graph flashes the first segment. If >swr is 1.5:1 >all the segments illuminate on voice peaks, as if swr was greater than 3:1. >To reduce the >uncertainty introduced by my antennas, I connected a 50 ohm load after an >external tuner >so I could create the 1.5:1 SWR, and got the same results. > >I assume this is a benign problem and likely caused by the non simultaneous >sampling >of FWD and REV power by the CPU. > >However, if no one else sees this I'll do some more checking. > >FW 4.81/2.83 and TX Gain Cal done recently. > >Mark. N2QT ______________________________________________________________ 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 Message delivered to [email protected]
