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 > > mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: > > http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] > <mailto:[email protected]> > > > > This list hosted by: http://www.qsl.net <http://www.qsl.net/> Please help > support this > email list: > > http://www.qsl.net/donate.html > > -- > 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] <mailto:[email protected]> > > This list hosted by: http://www.qsl.net <http://www.qsl.net/> > Please help support this email list: http://www.qsl.net/donate.html > > -- 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
