Try here: http://www.dj0ip.de/cmc-test/results-test-data/
P-T On 5 July 2014 20:45, Dick, K2ZR <k...@arrl.net> wrote: > Where can I find the results comparing these 4 antennas? > http://www.dj0ip.de/cmc-test/the-antennas/ > Thanks and 73, > Dick, K2ZR > -----Original Message----- > From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of David > Cutter > Sent: Saturday, July 05, 2014 1:30 PM > To: elecraft@mailman.qth.net; j...@audiosystemsgroup.com > Subject: Re: [Elecraft] A Good Antenna Length? > > Rick DJ0IP has performed many hundreds of cmc measurements over the last > year or so. He has yet to publish his complete findings but here is a > taste: > http://www.dj0ip.de/cmc-test/ > http://www.dj0ip.de/cmc-test/the-components/the-baluns/ > http://www.dj0ip.de/cmc-test/pre-test-preparation/ > http://www.dj0ip.de/cmc-test/results-test-data/ant-1-b0/ > http://www.dj0ip.de/cmc-test/test-configurations/ > http://www.dj0ip.de/cmc-test/results-test-data/ant-2-b5/ > > > After many hundreds of measurements he has demonstrated that with a *dual > core* Guanella 4:1 balun at the feed point, common mode current can be tamed > even with deliberately poor antenna and feeder layout. > > There are not many folks who would take the care and have the patience to do > this sort of work. > > David > G3UNA > > > > > > > ----- Original Message ----- > From: "Jim Brown" <j...@audiosystemsgroup.com> > To: <elecraft@mailman.qth.net> > Sent: Saturday, July 05, 2014 3:24 PM > Subject: Re: [Elecraft] A Good Antenna Length? > > >> On 7/5/2014 2:05 AM, David Cutter wrote: >>> You might consider an off-centre-fed dipole with appropriate balun and >>> choke. >> >> Not if you're going to run power. An off center fed antenna generates high > >> common mode voltage, which will fry even the best choke when running >> power. I wouldn't consider such an antenna at greater than 100W. >> >> 73, Jim K9YC > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to k...@arrl.net > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to p...@ieee.org ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
