Hi David,
My description of our W3AO Field Day antenna configuration was simplified to illustrate the benefits of a North/South straight line of antennas. We actually installed twelve 48 foot masts in two 950 foot North/South straight lines separated by 150 feet. We couldn't fit 22 antennas in a single 950 foot line! Mast and antenna installation and deployment of more than 7000 feet of RG-213 began at 10 a.m. Friday and was completed seven hours later. It took less than four hours to dismantle the entire site. Our site is a school/athletic field complex with more than 25 acres of mowed grass and no trees, its slightly elevated above surrounding terrain. This type of school/athletic field complex is very common in Maryland. Its an ideal Field Day site if you have many portable masts. But our VHF ops would still prefer a mountain top location... We installed twelve 48 foot masts in two 950 foot North/South lines. 950 foot line with seven 48 foot masts and 11 antennas broadside E/W: 0 feet: GOTA Tribander 80 GOTA dipole 150 feet: 15 CW 3 element Yagi 80 RTTY dipole 300 feet: 20 CW 3 element Yagi 500 feet: 15 SSB 3 element Yagi 650 feet: 20 SSB 3 element Yagi 80 CW dipole 800 feet: 15 RTTY 3 element Yagi 80 SSB dipole 950 feet: 20 RTTY 3 element Yagi 950 foot line, 150 feet to the East, with five 48 foot masts and 11 antennas broadside E/W: 0 feet: 40 CW 2 element Yagi 40 CW dipole 250 feet: 10 CW 3 element Yagi 40 GOTA dipole 400 feet: 50/144/432 MHz rotatable Yagis 40 RTTY dipole 800 feet: 10 SSB 3 element Yagi 40 SSB dipole 950 feet: 40 SSB 2 element Yagi 73 Frank W3LPL ----- Original Message ----- From: "david" <[email protected]> To: [email protected] Sent: Tuesday, June 26, 2018 2:23:17 AM Subject: Re: [Elecraft] K3S HI SIGNAL At W4UA, we don't have that luxury...the trees are what they are. We have one beam and several dipoles. What I think happened is that the beam operator swung the beam so it was pointing at the broadside of my doublet, while we were both on the same band... poof. But, now I'm curious...I know you were 15A, but 15 dipoles 100 feet apart is more than 1000 feet... On Mon, 2018-06-25 at 12:07 -0400, [email protected] 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 ----- Original Message ----- From: "aj4tf" <[email protected]> To: [email protected] Sent: Monday, June 25, 2018 10:06:16 AM Subject: Re: [Elecraft] K3S HI SIGNAL Thanks for the inputs on and off list. It appears that during FD we may have had two rigs on the same band inadvertently. I'll be talking with support this week. By the way, I got a personal message from Wayne on this topic. Do you think that would happen with Yacomwood? David AJ4TF Elecraft fan for life -- Sent from: http://elecraft.365791.n2.nabble.com/ ______________________________________________________________ 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]
