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:wd8dsb@aol.com]
Sent: Tuesday, November 22, 2011 7:47 PM
To: dale.long@prodigy.net
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 <dale.long@prodigy.net>
To: Topband <Topband@contesting.com>
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
dale.long@prodigy.net
Thanks and 73,
Dale N3BNA
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UR RST IS ... ... ..9 QSB QSB - hw? BK
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UR RST IS ... ... ..9 QSB QSB - hw? BK
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