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#1
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On May 1, 7:24*am, "Dave" wrote:
"Art Unwin" wrote in message ... A lot of words. *As far as mathematics is concerned I started with the Mathematics of Gauss and Maxwell and found they were mathematically connected. Nobody on this group agreed with that posture of mine. On the contrary, it was pointed out many times that Gauss's Law is one of the basic Maxwell Equations, so they are definately bound to each other. So as far as mathematics goes with this group is straight out of the window! So as far as your understanding of the Maxwell Equations, you are straight out the window. Cecil tried that aproach and failed also. Now you are proposing that mathematics is the trail that reveals all. unfortunately art has strayed so far off the trail that he'll need a spiritual guide to help him back to the light of day. Well David I have now finished all my work on the antenna except for a couple of bells and whistle that can wait for the balmy days of summer. Swr along the frequency span is similar to that of a log periodic with a slight waveiness but that can be altered remotely quite easily as well as a couple of other things. Jim, I will be finished on the other today and will be in UPS on Monday. I will not test before hand but leave that up to you. Will E mail you later with details By the way David, the antenna will stay at ground level and I will take the one off the tower as height is not now a consideration I suppose I will now have to think about taking the tower down as it is not needed anymore which will make the wife happy. This week end is now for the wife and her birthday. After that I will exercise the new antenna with a special look out for you. Regards, your adversary Art |
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#2
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"Art Unwin" wrote in message ... I have now finished all my work on the antenna except for a couple of bells and whistle that can wait for the balmy days of summer. Swr along the frequency span is similar to that of a log periodic with a slight waveiness but that can be altered remotely quite easily as well as a couple well, what is the beamwidth and frequency range?? |
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#3
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On May 1, 1:55*pm, "Dave" wrote:
"Art Unwin" wrote in message ... I have now finished all my work on the antenna except for a couple of bells and whistle that can wait for the balmy days of summer. Swr along the frequency span is similar to that of a log periodic with a slight waveiness but that can be altered remotely quite easily as well as a couple well, what is the beamwidth and frequency range?? What are your desires ? |
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#4
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"Art Unwin" wrote in message ... On May 1, 1:55 pm, "Dave" wrote: well, what is the beamwidth and frequency range?? What are your desires ? I'll make it easy, 10 degree beamwidth and 30MHz bandwidth. |
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#5
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On Fri, 01 May 2009 22:37:24 GMT, "Dave" wrote:
I'll make it easy, 10 degree beamwidth and 30MHz bandwidth. At how many GHz? The problems of poor reporting are creeping into the lack of specific questions. An example: Inventor I have this patent that proves my technology. Questioner It shows the reflector is smaller than the driven element; it shows the director is larger than the driven element; Does this prove the Yagi no longer works? Inventor [silence/mumbling/outrage] I didn't come here for ad hominem! 73's Richard Clark, KB7QHC |
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#6
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On May 1, 5:54*pm, Richard Clark wrote:
On Fri, 01 May 2009 22:37:24 GMT, "Dave" wrote: I'll make it easy, 10 degree beamwidth and 30MHz bandwidth. At how many GHz? The problems of poor reporting are creeping into the lack of specific questions. An example: Inventor * * * * I have this patent that proves my technology. Questioner * * * * It shows the reflector is smaller than the driven element; * * * * it shows the director is larger than the driven element; * * * * Does this prove the Yagi no longer works? Inventor * * * * [silence/mumbling/outrage] I didn't come here for ad hominem! 73's Richard Clark, KB7QHC A reflector can be shorter or longer than the driven element in planar designs especially Yagis with two reflectors. Shakesphere should have told you that ! David, the antenna covers the distance covered by a mfj 259 b which is 1.7 to around 175 mega hz. Obviously it therefore has no limits above .Below I cannot measure unless I modify my radio outside the amateur bands, ie reflect swr outside the ham bands. Beam widths I can't determine as I do not have enough segments available on my optimizer program . But I believe that can be accomplished. Check out the SK list regularly as I may leave the answer in my will if it mentions you. Art |
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#7
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"Art Unwin" wrote in message ... David, the antenna covers the distance covered by a mfj 259 b which is 1.7 to around 175 mega hz. Obviously it therefore has no limits above .Below I cannot measure unless I modify my radio outside the amateur bands, ie reflect swr outside the ham bands. Beam widths I can't determine as I do not have enough segments available on my optimizer program . But I believe that can be accomplished. but wait... you have built it.. you can measure the swr, so why can't you measure the beamwidth? pick an AM broadcast station and turn it and see how wide the pattern is. |
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#8
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Richard Clark wrote:
On Fri, 01 May 2009 22:37:24 GMT, "Dave" wrote: I'll make it easy, 10 degree beamwidth and 30MHz bandwidth. At how many GHz? snip Richard Clark, KB7QHC At 160m. You can't possibly have missed that, Richard. Art has stated it dozens of times. Maybe hundreds. He's nuts, and very thorough about it. tom K0TAR |
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#9
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On May 1, 9:01*pm, Tom Ring wrote:
Richard Clark wrote: On Fri, 01 May 2009 22:37:24 GMT, "Dave" wrote: I'll make it easy, 10 degree beamwidth and 30MHz bandwidth. At how many GHz? snip Richard Clark, KB7QHC At 160m. *You can't possibly have missed that, Richard. *Art has stated it dozens of times. *Maybe hundreds. He's nuts, and very thorough about it. tom K0TAR Tom, you are a real misery. Are you suffering from depression? In this group some are so dense you have to state things a hundred times at least |
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#10
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On Fri, 01 May 2009 21:01:26 -0500, Tom Ring
wrote: I'll make it easy, 10 degree beamwidth and 30MHz bandwidth. At how many GHz? At 160m. Art is careful to never give every detail. Experience has taught him that doing that leads to the quick thud of deflating claims. Like Cecil, always arguing about a detail means never having to say you're sorry. You can't possibly have missed that, Richard. Art has stated it dozens of times. Maybe hundreds. Well, perhaps 11 times or 99, I pulled the plug on him and only hear his postings as static behind other conversation. 10 years of his dull needle stuck in the same worn groove has lost its -um- charm. Same thing for Cecileo's preaching from the gallows hoping that the last fall will give him enough swing to kick someone in the nuts. 73's Richard Clark, KB7QHC |
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