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Posted by Randall Yates on February 20, 2022 at 23:43:34.
In Reply to: Re: 15m rule metal assumption posted by J D on February 20, 2022 at 19:19:18.
Well, I was enjoying Bacardi Black yesterday, when I thought about materials. Metal definitely has a lot going for it, but I was wondering, given the limitations of the regulations and the physics, if metal's strong points weren't the main issue. What results might be obtained if the material gradually changed from high conductivity (metal) at the feed point to a lower conductivity semiconductor toward the end? Is there any benefit at these wavelengths and antenna/ground system requirements to distributing the antenna's end effect throughout the length of the radiator? Not to anthropomorphize radio components too much, but if the transmitter can't "see" a definitive end to the antenna, will the transmitter behave as if the antenna is exponentially longer? Instead of "seeing" a 15 meter system, could it instead be fooled into "seeing" an ~860 meter system?
Go easy on the replies, my extra class license expired about 4 years ago, lol.
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