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Bob, I've already tried to explained that I posted the free space pattern in this case, simply because that it what Avanti displayed in their Patent for the AstroPlane. The mistake I made was posting a free space model with a mast included, which we both should know is not appropriate. IMO the fact is, that a free space model with a mast connected to Earth is not good protocol to follow in free space modeling practices...and thus the funky pattern. This issue you raise has nothing whatever to do with the ideas presented by W8JI/Cebik regarding the short comings with modeling in the absence of mast and/or feed line.

 


 

I think there is more to your opinion regarding Eznec than you let on, but the issue here is what other people might think on hearing your critical words, concerning Eznec and what Cebik told you. What you said is clear to me, but is it also possible that most readers of these posts may not understand the distinction you make in this regard. Since this idea came up repeatedly in the recent past, there seems to be little to no interest or discussion regarding modeling, and for me that is unfortunate.

 


 

Well, at least you heard another opinion and got some feed back regarding the J-pole vs. the Sigma4 design in that case. I have posted numerous models, and I very rarely-if-ever get a question in return. What do you think that tells us about modeling?