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On Feb 24, 8:14*pm, Richard Clark wrote:
On Wed, 24 Feb 2010 19:50:47 -0600, tom wrote: Ok, revisiting things now that I have time, I discovered something, which The Art may (ok, will) get off into an incomprehensible rant about.. This outrage is largely due in part to revealing an inferior design: * * * * * * *Gain * * * F/B Original * * 9.87 dBi * 7.84 Normalized *10.29 dBi * 8.58 I wonder whatever happened to the golden city shining on the top of the hill that Art called "length efficiency?" *A back of the envelope calculation of Art's 20M antenna reveals elements that are conventional half wave. *This raises the more immediate head-scratcher: whatever happened to the golden calf of his designs being in equalithium? 73's Richard Clark, KB7QHC Richard, I am sharing results provided by computer optimizers where an array must be in equilibrium. I am not party to how these programs were generated or how closely they adhere to maxwells equations.If they provide results that are different then that seller has to answer for it. Obviously clever people such as yourself will guide hams on the correct path to follow as well as to explain why Maxwells equations do not favor the yagi. Hopefully you will supply technical details and not just wordy fluff. I would point out that Tom provided a planar form, which you copied, for a different frequency to the one that I supplied which provided f/ b/r that greatly exceeded his design. If your idea is to be a pied piper to lead ham radio away from examining change then such tactics will certainly do the job. But first to justify your dreams as a leader you have to provide reasons that make optimizer programs suspect. A point in your favor would be that Roy declares that his optimizer do NOT supply the results that others do so that experts such as you can direct your talents where they would be more profitable. Since you are not wired the same as I am I will not respond to you any more so that guilt by association may not be applied. But I will mention to all that you are in total disagreement with the association of a static field being made dynamic which is a staple in physics around which this discussion rests upon. Nobody, nobody, has come forward to provide academic reasons why this staple should not be held to or why people such as you should trash pursuit of that what I disclose. What I have provided is that computer programs side lines yagis in favor of arrays where elements are not parallel but all are resonant and where the array as a whole is in equilibrium. They do this because Maxwell supports the physics staple I proffer which you declare as NOT being correct but without supporting data other than you said so. |
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