I should add that I do not have the KAT3 internal ATU. When I refer to the auto ATU I am referring to the external ATU at the feedpoint of the antenna, which happens to be an Icom AH-4 ATU. However, since this problem occurs too when the K3 is connected directly to my dummy load, I can only assume that the problem lies within the K3 (but not its tuner which I don't have!).
73 Stephen G4SJP On 07/06/2009 20:45, "Stephen Prior" <[email protected]> wrote: > Whilst calling CQ on 6m tonight (100W into about 1.3:1 VSWR), all of a sudden > I got a high SWR indication (4.9:1). Forcing a retune of the auto ATU did not > improve it. I checked the VSWR with my Kuranishi BR210 analyser and it > reported about 1.5:1 VSWR. > > I then connected the K3 to a Bird dummy load. The K3 reports the VSWR on 6m > into the dummy load as 3.6:1. On all other bands the K3 reports 1.0:1. My > Kuranishi meter confirms the VSWR of the Bird load to be no more than 1.2:1 up > above 150MHz. > > It is as if the K3's reflected power measurement on 6m only has become faulty. > Has this been seen before? > > Stephen G4SJP ______________________________________________________________ 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
