Out of curiosity I added 9 directors to a 4 el yagi model in EZNEC. Same
spacing and length as the two already existing directors. The gain
increased with each added until the 9th element was added and was about 1.4
db above the 4 el and then steadily decreased to the 13th element which then
was .27 db lower than the 4 el.
However, the elevation angle at max gain steadily decreased from 26 degrees
to 18 degrees!
I didn't attempt any optimizing. Hope some may be interested in this
----- Original Message -----
From: "Gedas" <firstname.lastname@example.org>
Sent: Saturday, March 29, 2008 2:28 PM
Subject: Re: [TowerTalk] worlds biggest yagi
> My good friend Chuck, K9RM (EX k9rms) who lives near Indy has a 25 element
> wire yagi
> for 40m with a total boom length of around 1000'. I live north of him
> 80 miles or so. A year or two ago Chuck and I were BS'ing and working DX
> out into the pacific and VK/ZL land and the results at reports between us
> pretty dramatic. I was using a CC 2L at 85'. What I remember the most
> that Chuck was able to copy and work fellas that were 100% invisible to
> He would hand out 5x9 reports to stations that were non-existant to me !
> His ability to reject broadcast QRM was really impressive. Lots of fun,
> that's for sure.
> Gedas, W8BYA
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