Steve, you didn't say how long your antenna is, but I feed an 88-foot long doublet with about 110 feet of 450 ohm ladder line. Sometimes I use the KAT3 tuner, sometimes my KAT500. Both of them have no problem getting close to 1:1 on 40-6 meters and about 1.6:1 on 80. In no instance does the K3 fold back power for me. I assume you have some sort of balun between the K3 and the ladder line... Mine is a Balun Designs 5KW 4:1 model. Any chance you are getting RF back into the K3 causing it to act goofy?
Jim / W6JHB > On Oct 23, 2014, at 1:33 PM, zabarnick . <[email protected]> wrote: > > Since I exclusively use balanced ladder line fed antennas, I have been > using an external Palstar balanced tuner rather than my K3 internal > KAT3 tuner. Recently, I've decided to give the internal tuner another > try. > > I find that on some bands, even though the KAT3 brings the SWR match > below 2:1, the transmitter output power is reduced from 100 watts to > the 60-70 watt range. I don't see this issue with the external tuner, > but I can almost always find a 1:1 match. Is this because my muti-band > non-resonant doublet is providing impedances that are too difficult > for the KAT3 to match? Or is something more sinister afoot? > > Steve N9SZ > >> On Tue, Feb 25, 2014 at 2:11 PM, zabarnick . <[email protected]> wrote: >> My K3 SWR meter no longer reads 1:1 into a 50 ohm dummy load or >> matched load. The lowest it will read is 1.2:1. Is there a calibration >> or zeroing I should redo? >> >> Steve N9SZ > ______________________________________________________________ > 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]
