WA1ABI sent me a photo of the lead coiled up. That might do it. On 8/16/2011 6:47 PM, Joe Subich, W4TV wrote: > >> What makes me quibble is that I don't think that the very small > > difference in cable lengths -- 1 or 2 cm -- could possibly make a > > difference at 6 m. > > Just thinking out loud ... lead dress might make a difference. Since > ANT 1 is closer to the place the wires pug into the KAT3, a builder > might coil the excess wire while ANT 2 might be straight. The extra > inductance ANT 1 vs. ANT 2 might make a difference. > > 73, > > ... Joe, W4TV > > > On 8/16/2011 8:51 PM, Vic K2VCO wrote: >> Well, that takes care of most of my points. There is a possibility that even >> 'bypass' is >> different for ant1/2, because, as you know, 'bypass' compensates for the >> reactance of the >> traces, etc. and does not actually remove the tuner from the circuit. >> >> What makes me quibble is that I don't think that the very small difference >> in cable >> lengths -- 1 or 2 cm -- could possibly make a difference at 6 m. >> >> >> On 8/16/2011 3:48 PM, Johnny Siu wrote: >>> Perhaps, I should clarify my measurement. The power readings were taken by >>> LP100A on a >>> Bird dummy load under 'BYPASS' mode. To reiterate, inmy case, I got higher >>> RF output when >>> connecting my 6m ant to ANT 1. >>> >>> TNX& 73, >>> >>> >>> Johnny VR2XMC >>> *從︰* Vic K2VCO<[email protected]> >>> *收件人︰* [email protected] >>> *傳送日期︰* 2011年08月16日 (週二) 11:37 PM >>> *主題︰* Re: [Elecraft] KAT3 in 6m >>> >>> But keep in mind that the antenna tuner parameters are saved per band AND >>> per antenna. So >>> the tuner may be set slightly differently for the two antenna outputs. I >>> suspect that if >>> you set the tuner to BYPASS and checked with a dummy load they would be the >>> same. >>> >>> Also many digital wattmeters have poor resolution. Maybe the difference >>> between 82 and 92 >>> watts is just one bit and the power is close to 87 watts in both cases! >>> >>> On 8/15/2011 11:00 PM, Johnny Siu wrote: >>> > >>> > Hello Group, >>> > >>> > I found something interesting. As some of you may be aware the pin 1 wire >>> > to ANT1 is >>> > shorter than pin 2 wire to the ANT 2. All the way through, I connect my >>> > 6m hamstick to >>> > ANT2 and 20m hamstick to ANT 1. >>> > >>> > Last evening, I did a swap with 6m hamstick on ANT 1(the one with shorter >>> > pin 1 wire). >>> > I got 92w out which is more than the usual 82w. In other words, the >>> > length of the >>> > wiring from the pin to ANT socket does matter. In my case, I got higher >>> > RF output when >>> > connecting my 6m ant to ANT 1. >>> > >>> > There is no adverse effect to 20m hamstick which is connected to ANT 2. I >>> > just share my >>> > experience with other elecrafters with low RF output in 6m. >>> > >>> > TNX& 73, >>> > >>> > >>> > Johnny VR2XMC >>> > ______________________________________________________________ Elecraft
-- Vic, K2VCO Fresno CA http://www.qsl.net/k2vco/ ______________________________________________________________ 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
