All I remember back then was the concern for the very high gain noted with Henry's model, and it was in disbelief. I also remember as information became available how limitations would distort the results and this fed into the question for the very high gain we were seeing.
This is when I decided to start modeling to see what happened with this model if I could set it to specs, but the word then was that the Sigma4 design could not be modeled without showing errant results, similar to what you have suggested, and with a maximum TOA up in the 40* degree area. That and maybe some misguided banter was the death nail for modeling on this forum.
I just continue in vain.
By the way did you note where I claim to have possibly figured out why Eznec has the limitation for close elements, how that is manifested, and how it can badly affect how Eznec works or doesn't work. I ask, what if the words we've heard attributed to Cebik were talking in brief, without going into the topic with the full story?
I also have an anecdotal account from one of our forum buddies that I think experienced a similar issue in his first attempt to build his Vector, an issue that I suggest exist within the Eznec limitation on close elements.
I raised my idea at the time of the project issue with a bad match, but it got no attention. I can't recall what our buddies' opinion on the issue was right off hand. If I was to guess, I think my idea is not what he would say he experienced however, but I could be wrong, I'm just guessing now. He has told me that he might test the idea if he ever does another Vector.
Well, with all of this said, I will reiterate. I think there is a little trick in modeling that also may apply to the real construction issues with some of these antennas with radials that are connected at trigonometric tangents.
Shockwave, regarding the phase on/off switch, go to View Antenna, click on View, click on Objects, and a pop up widow will list things you can do with the antenna view. These switches are all toggles, so you can click them back and forth, and visualize the affects changing the antenna image.
