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Yes, I see this as "proof" (at the very least--it causes me to suspect) that
we are missing and ignoring some variable(s) which makes this all overly-difficult... sounds to me you are noticing we need a "unified antenna theory." If so, I agree... and I certainly don't offer myself as anything more than one who notices this--no answers--just questions.... Warmest regards, John -- Marbles can be used in models with excellent results! However, if forced to keep using all of mine up... I may end up at a disadvantage... I seem to have misplaced some!!! "Asimov" wrote in message ... | "John Smith" bravely wrote to "All" (11 May 05 22:25:13) | --- on the heady topic of " Reflector Vs Director" | | The only thing I know is that an antenna is a tricky compromise | between a myriad of physical constants that make it up. Simply | changing the dimensions of an element will affect the optimum spacing | for maximum gain. But then so too having maximum gain as a goal will | often reduce bandwidth. So some compromise to gain/bandwidth must be | made to have a real antenna at the end of the process. Many such | mutually defeating compromises must be juggled with to achieve this. | Then, as if this wasn't enough, one must add the interaction with the | environment, thinks like weather, proximity to objects, noise, etc. | | A*s*i*m*o*v | | | JS Reply-To: "John Smith" | JS Xref: aeinews rec.radio.amateur.antenna:30174 | | JS Oh yes, the important spacing--we agree on that alright (the rest | JS too--I see that physical/electrical length as important to--but | JS "electrical length" and "magnetic field shape" are related on an | JS almost linear scale), but what is "in" that "spacing"--now there is | JS the nut of this... that "magnetic field" is not a "proton projection" | JS and my antenna does not "glow"--and that "space" ain't no wire--or is | JS it? | | ... Children come from God. He can't stand the noise either. | |
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