Is that on all bands? How long is the coaxial cable between the K3 and the external meter?
Both of those things will have a pronounced effect on the SWR. Even though the K3 has found a 1.0:1 match, that says nothing about the SWR on the coaxial line. The readings you see on an external SWR meter may vary widely if the system is not terminated in a 50-ohm non-reactive load. An antenna seldom presents a 50 ohm non-reactive load. First put a known good dummy load on the rig. That will keep the SWR on the coax low. Now compare your external meters with the K3 using a very short piece of coax (a few inches) and do the comparison at a fairly low frequency - 160 or 80 meters - to reduce the effects of any remaining stray reactance. Check one meter at a time since the SWR meter itself adds a little reactance. They should agree fairly well under those conditions. A range of 0.2 is pretty common (i.e. 1.0:1 and 1.2:1), but I'd start to question the meter if one read 1.5:1 and the other 1.0:1 under those conditions. Ron AC7AC -----Original Message----- I just noticed that the SWR meter readings on my K3 do not match my IC-7000 or my Palstar antenna analyzer. The Icom and the Palstar both read the same but the K3 reads lower. The K3 reads 1.0:1 the others read 1.5:1. Is there an adjustment for the K3, or am I just being too critical here? Larry N0SA -- ______________________________________________________________ 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
