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#1
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John Gilmer wrote:
Hi: A month or so ago I say a PBS piece on fractals. The piece claimed that the "technology" is used to make the antennas for cell phones. Have any amateurs used "fractal technology" to form their antennas? I recall a 10 meter fractal antenna. Strange looking thing. Disappeared some time ago from the web. It's interesting that they call fractals "technology". Any of us could generate a usable fractal, and form some wire along that pattern, and make something. "Fractal" is no more technology than is "dipole". There is a fellow who used to post here who has a company that makes such antennas. When I first came to this group, there was a war winding down. I never had any problems with the guy, but whoeeee the arguments were running hot. But on the antennas themselves, they work, but they are not a substitute for a lot of other high performance antennas. All antennas are compromises, and Fractal ones are all about getting an antenna into a small space. The are mostly UHF also. That ten meter antenna was the exception, not the rule. HF? Imagine a 160 meter Fractal. No matter how it's done, it's still going to be big. If you have a small box running at UHF, you might think about putting a fractal (or it's cousin, a small random pattern antenna) in it. But if you want to run 80 meters in a small yard, there are better ways of doing it. Also, I note that "they" market HDTV antennas that are about the size of a book. Do these things work? What's inside them? Define work. 8^) *Real* close to the stations? then probably. As for what's inside, if there was any design at all, probably a dipole cut for the approximate frequency. But that's a guess. IMO they are a wast of money. - 73 de Mike N3LI - |
#2
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On Wed, 30 Sep 2009 13:31:22 -0400, Michael Coslo
wrote: I recall a 10 meter fractal antenna. Strange looking thing. Disappeared some time ago from the web. Same page for ten years now: http://www.qsl.net/kb7qhc/antenna/fr...sket/index.htm 73's Richard Clark, KB7QHC |
#3
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Richard Clark wrote:
On Wed, 30 Sep 2009 13:31:22 -0400, Michael Coslo wrote: I recall a 10 meter fractal antenna. Strange looking thing. Disappeared some time ago from the web. Same page for ten years now: http://www.qsl.net/kb7qhc/antenna/fr...sket/index.htm Ahh, I didn't know about your page. The one I was thinking about had an actual picture and construction ideas. So you're in the Puget Sound area? I used to stay in Poulsbo fairly often. Spent some evenings at the "Sons of Norway" club there. Coslo is a good old Norwegian name! 8^) - 73 d eMike N3LI - |
#4
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On Wed, 30 Sep 2009 15:26:54 -0400, Michael Coslo
wrote: So you're in the Puget Sound area? I used to stay in Poulsbo fairly often. Spent some evenings at the "Sons of Norway" club there. Coslo is a good old Norwegian name! 8^) So howcum you missed the Norwegian independance day parade here in Ballard? Largest one outside of Norway. 73's Richard Clark, KB7QHC |
#5
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Richard Clark wrote:
On Wed, 30 Sep 2009 15:26:54 -0400, Michael Coslo wrote: So you're in the Puget Sound area? I used to stay in Poulsbo fairly often. Spent some evenings at the "Sons of Norway" club there. Coslo is a good old Norwegian name! 8^) So howcum you missed the Norwegian independance day parade here in Ballard? Largest one outside of Norway. Oh, being in PA kinda limits my access. My Sons of Norway exposure was mostly because a relative was a member. I really liked those folks though. Garrison Keillor just about has them pegged - although the folks I was around liked to party a bit more. My favorite story from those days is how when I first meet a Norwegian, they would tell you in a couple minutes if they like you or not. If they like you, they next thing they do is buy you a drink. I eventually told my father in law (the member) that we had to limit my meeting more people to the weekends, or no more than 2 an evening. - 73 de Mike N3LI - |
#6
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On Oct 1, 11:30*am, Michael Coslo wrote:
Richard Clark wrote: On Wed, 30 Sep 2009 15:26:54 -0400, Michael Coslo wrote: So you're in the Puget Sound area? I used to stay in Poulsbo fairly often. Spent some evenings at the "Sons of Norway" club there. Coslo is a good old Norwegian name! 8^) So howcum you missed the Norwegian independance day parade here in Ballard? *Largest one outside of Norway. Oh, being in PA kinda limits my access. My Sons of Norway exposure was mostly because a relative was a member. I really liked those folks though. Garrison Keillor just about has them pegged - although the folks I was around liked to party a bit more. My favorite story from those days is how when I first meet a Norwegian, they would tell you in a couple minutes if they like you or not. If they like you, they next thing they do is buy you a drink. I eventually told my father in law (the member) that we had to limit my meeting more people to the weekends, or no more than 2 an evening. * * * * - 73 de Mike N3LI - I spent 3 months in Norway, they must have liked me a lot. Good thing that happened in my youth. Jimmie |
#7
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JIMMIE wrote:
On Oct 1, 11:30 am, Michael Coslo wrote: My favorite story from those days is how when I first meet a Norwegian, they would tell you in a couple minutes if they like you or not. If they like you, they next thing they do is buy you a drink. I eventually told my father in law (the member) that we had to limit my meeting more people to the weekends, or no more than 2 an evening. - 73 de Mike N3LI - I spent 3 months in Norway, they must have liked me a lot. Good thing that happened in my youth. Yup. I know the feeling. Poulsbo had more characters per square inch than any other place I've been. I had the retired marine sargent who was afraid of ghosts - but nothing else, the most people loving person I'd ever seen, "****bird", the mumbling old gent who wasn't happy unless he had you rolling on the floor laughing, and a host of others. They were all much older than me at the time so they're probably all gone now. - 73 de Mike N3LI - |
#8
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On Wed, 30 Sep 2009 15:26:54 -0400, Michael Coslo
wrote: Ahh, I didn't know about your page. No one actually cares about fractal antennas. Like the rest of the tourists, our original poster has already moved on without a second thought on the subject. The one I was thinking about had an actual picture and construction ideas. No one actually builds them either, unless they were accidentally "constructed" when left in the driveway and back over with a car. We've had actual picture of Art's antenna left on a doorstep that Art (like an unwed mother) has never acknowledged. Construction ideas litter webspace like a toilet papered tree. 73's Richard Clark, KB7QHC |
#9
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No one actually cares about fractal antennas. Like the rest of the
tourists, our original poster has already moved on without a second thought on the subject. The one I was thinking about had an actual picture and construction ideas. No one actually builds them either, unless they were accidentally "constructed" when left in the driveway and back over with a car. We've had actual picture of Art's antenna left on a doorstep that Art (like an unwed mother) has never acknowledged. Construction ideas litter webspace like a toilet papered tree. I saw that program on PBS (I think it was Nova). They actualy interviewed the designer who used to post here all the time. Frank |
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