The only time I see that sort of fluctuation is at home, when it is raining. I'm using 450 ohm "ladder line" to feed an 88-foot long doublet, 45 feet up. Prior to the rain coming down, I can press Tune and get a great match on any band, 80-6 meters. When the rain starts up, my SWR jumps up to 2.5:1 or more. That 450-ohm stuff has to go. Are you operating in rainy conditions, or with that stuff?
Jim / W6JHB On Monday, Mar 31, 2014, at Monday, 10:02 AM, Gary Hawkins wrote: > On my last two portable outings I've noticed that after a few QSOs I start to > get unstable SWR readings, with the radio reporting fluctuating SWR ranging > into the 2 and 3's. I'm using a tuned antenna, plus pressing the ATU button > results in 1:1 matching. Everything is fine for a while and then the SWR > reading go unstable midway through the QSO. Pressing the ATU button seems to > resolve the problem for a while but it starts up again. I realize it could > be a problem with the cabling or antenna but visual inspection seems to > indicate everything is fine and so far I've not been able to replicate the > problem on the bench. Has anyone seen this type of problem with the KX3? > ______________________________________________________________ > 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] ______________________________________________________________ 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]
