Hi John,
I forgot to answer your question about the receiving antennas at my W3LPL multi-multi contest station. T hey're all verticals. 36 of them located one 1000 feet south east of my transmitting antennas. Three 8-circle vertical arrays for 160, 80 and 40 meters and Three 4-square vertical arrays for 20, 15 and 10 meters. 73 Frank W3LPL ----- Original Message ----- From: donov...@starpower.net To: elecraft@mailman.qth.net Cc: j...@kk9a.com Sent: Monday, June 25, 2018 6:29:03 PM Subject: Re: [Elecraft] K3S HI SIGNAL Hi John, No, they are all pointed in exactly the same direction. To eliminate all interference between multiple K3 transceivers operating in the same band, all W3AO HF antennas are deployed in a 1000 foot long straight line running north-south with all of our 3 element HF Yagis and 2 element 40 meter Yagis pointed west. All of our dipoles are broadside east-west. There's no trace of interference among any of the K3 transceivers 73 Frank W3LPL ----- Original Message ----- From: j...@kk9a.com To: elecraft@mailman.qth.net Sent: Monday, June 25, 2018 5:34:37 PM Subject: [Elecraft] K3S HI SIGNAL What does tip to tip mean - pointing 90 degrees apart? Don't you use verticals for your mult stations at W3LPL to minimize in band interference? How far are they from the Yagis? John KK9A Frank Donovanf W3LPL wrote: We routinely operate three or more K3 transceivers on the same band at W3AO, four on the band our GOTA station is operating. Not only is there no damage to the K3s and no HI SIG warnings, we don't hear any cross-station interference at all! The trick is to use horizontally polarized antennas installed tip-to-tip with at least 100 feet of spacing between each other. 73 Frank W3LPL ______________________________________________________________ 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 donov...@starpower.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 donov...@starpower.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 arch...@mail-archive.com
