Thanks to everyone for all the helpful information. i was certain that it could be done, and I thank you all for the detailed information.
The 80m verticals are already there, I am using the two verticals independently, so all I need to do is buy a roll of coax, make the delay line, and think about making it switchable. (I am sharing the radial systems with a couple 160m inverted Ls that are fed using the Christman method.) Again thanks to all for your kindness. Dale N3BNA From: Don Kirk [mailto:[email protected]] Sent: Tuesday, November 22, 2011 7:47 PM To: [email protected] Subject: Re: Topband: feeding phased verticals at half wave spacing Hello Dale, The ARRL Antenna Book that I have (19th edition) has the plots you are looking for, and they are in agreement with what I obtain using EZNEC for two vertical radiators spaced 1/2 wavelength apart. (if you have the ARRL Antenna Book look in the section that covers multi-element arrays). Nevertheless I went ahead and ran some models for you, and attached is a .pdf document that has the plots I created that should answer your question. When looking at my plots just imagine that one of the vertical elements is on the left hand side of the page with the second element on the right hand side of the page, and the angle that I mention is in regards to how the right hand element is being fed relative to the left hand element. Hope this helps. 73's Don Kirk (wd8dsb) -----Original Message----- From: Dale Long <[email protected]> To: Topband <[email protected]> Sent: Tue, Nov 22, 2011 6:00 pm Subject: Topband: feeding phased verticals at half wave spacing Gentlemen: I have been told repeatedly that phased verticals should be spaced 1/4 wavelength apart. Ok, I am willing to accept that. My question is if you have verticals that are 1/2 wave apart, would it not give some pattern, whatever that should be? If you were looking for an endfire pattern how should you feed such verticals? If you have specific questions, you may contact me directly at [email protected] Thanks and 73, Dale N3BNA _______________________________________________ UR RST IS ... ... ..9 QSB QSB - hw? BK _______________________________________________ UR RST IS ... ... ..9 QSB QSB - hw? BK
