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#1
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![]() "art" wrote in message ups.com... On 5 Feb, 13:09, "art" wrote: On 3 Feb, 19:51, "Ralph Mowery" wrote: Has anyone modeled what happens to the signal of a triband 3 element antenna that has one or more of the elements that has slipped on the boom say 10 or 20 deg ? Also saw in an old magazine an antenna for 2 meters that had each element offset by about 5 or 10 deg around the boom to produce circular polarization. Will this actually work or is it wishful thinking ? Ralph you are getting very close to reality.If all your elements are close to individual resonance then slippage upto 30 degrees will be to your advantage. At the same time your total gain will consist of the addition of all other polarizations including circular With respect to the 2 meter antenna, if I remember correctly the successive angles must be between around 20 to 30 degrees and none of the elements will measure a half wave length since they must all be resonant despite the coupling effects which adds to complications in manufacture. Still if you feed one element at a time you can eventually get to Eldorado, if not then get in touch with your requirements and I will provide the dimensions and if you have any doubt you can use your own program to check its validity. Have fun Art No I am not saring that! What I am saying is that an anterna can radiate in many ways at the same time. One or all of them can combine or cancel to provide a max radiation field. Why I mentioned that was if a radiator was horizontal which hams would normally favour would favour horizontal polarization and other polarizations would suffer. If the array did not favour a particular polarization by being placed at an angle to the surface of the earth you would hear signals at different distances because of various polarization signals one can receive. In other words your antenna covers a larger land area than say a horizontal antenna alone. This could well be why a Yagi appears not to hear as well as a quad which hears a variety of signals from different distances but of course many would argue the validity of that statement just for aurguments sake alone.! The Gaussian clustered arrays that I talk about are radiating arrays of arbitary positions and angles relative to one another such that they are suitable for use at any polarization required for advantage. Also because all elrments are resonant interchange of driven elements can be attained to porvide alternate polarizations a challenge that I understand Yuri is presently pursuing for various reasons tho I understand it is mainly to combat fading of signals, but he can explain for himself.. Art Polarity diversity is nothing new Art, the way you are trying to achive it, if that is what your guassian cluster is all about is the wrong way to go about it. First time you have even come close to describing what you are doing. |
#2
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On 9 Feb, 00:27, "Jimmie D" wrote:
"art" wrote in message ups.com... On 5 Feb, 13:09, "art" wrote: On 3 Feb, 19:51, "Ralph Mowery" wrote: Has anyone modeled what happens to the signal of a triband 3 element antenna that has one or more of the elements that has slipped on the boom say 10 or 20 deg ? Also saw in an old magazine an antenna for 2 meters that had each element offset by about 5 or 10 deg around the boom to produce circular polarization. Will this actually work or is it wishful thinking ? Ralph you are getting very close to reality.If all your elements are close to individual resonance then slippage upto 30 degrees will be to your advantage. At the same time your total gain will consist of the addition of all other polarizations including circular With respect to the 2 meter antenna, if I remember correctly the successive angles must be between around 20 to 30 degrees and none of the elements will measure a half wave length since they must all be resonant despite the coupling effects which adds to complications in manufacture. Still if you feed one element at a time you can eventually get to Eldorado, if not then get in touch with your requirements and I will provide the dimensions and if you have any doubt you can use your own program to check its validity. Have fun Art No I am not saring that! What I am saying is that an anterna can radiate in many ways at the same time. One or all of them can combine or cancel to provide a max radiation field. Why I mentioned that was if a radiator was horizontal which hams would normally favour would favour horizontal polarization and other polarizations would suffer. If the array did not favour a particular polarization by being placed at an angle to the surface of the earth you would hear signals at different distances because of various polarization signals one can receive. In other words your antenna covers a larger land area than say a horizontal antenna alone. This could well be why a Yagi appears not to hear as well as a quad which hears a variety of signals from different distances but of course many would argue the validity of that statement just for aurguments sake alone.! The Gaussian clustered arrays that I talk about are radiating arrays of arbitary positions and angles relative to one another such that they are suitable for use at any polarization required for advantage. Also because all elrments are resonant interchange of driven elements can be attained to porvide alternate polarizations a challenge that I understand Yuri is presently pursuing for various reasons tho I understand it is mainly to combat fading of signals, but he can explain for himself.. Art Polarity diversity is nothing new Art , I didn't sar it was the way you are trying to achive it I am not trying it is automatic because of the design, if that is what your guassian cluster is all about is the wrong way to go about it. First time you have even come close to describing what you are doing.- I have stated what it is all about and was quoted as being a blithering idiot. The group as a whole is not ready to accept anything that is not written in any book. Humans by their very nature are unwilling to accept change so the generation that comes along to suck up all that is written is the one that advances in science. Art Hide quoted text - - Show quoted text - |
#3
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On Feb 9, 10:41 am, "art" wrote:
On 9 Feb, 00:27, "Jimmie D" wrote: The group as a whole is not ready to accept anything that is not written in any book. Humans by their very nature are unwilling to accept change so the generation that comes along to suck up all that is written is the one that advances in science. Art I could care less about books, although I do have quite a few. I'm more convinced when I actually see something work. If you are convinced this theory of yours has merit, why can't you build one of the things and test it? All this gaussian jibber jabber doesn't mean squat if you can't build , test, and demonstrate one in the real world. I read books, but I also usually test things in the real world to verify the info is correct. Trust me, not much of what is in books is wrong. Some is, but it's fairly rare overall. If I were to come up with some new design, I would have built, tested, and compared, before I even made any announcement about the theory. I get the impression that you cook up all these ideas, but rarely actually test them in the real world. That's no way to live, if you don't want the negative flak. MK |
#4
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On 9 Feb, 09:48, wrote:
On Feb 9, 10:41 am, "art" wrote: On 9 Feb, 00:27, "Jimmie D" wrote: The group as a whole is not ready to accept anything that is not written in any book. Humans by their very nature are unwilling to accept change so the generation that comes along to suck up all that is written is the one that advances in science. Art I could care less about books, although I do have quite a few. I'm more convinced when I actually see something work. If you are convinced this theory of yours has merit, why can't you build one of the things and test it? All this gaussian jibber jabber doesn't mean squat if you can't build , test, and demonstrate one in the real world. I read books, but I also usually test things in the real world to verify the info is correct. Trust me, not much of what is in books is wrong. Some is, but it's fairly rare overall. If I were to come up with some new design, I would have built, tested, and compared, before I even made any announcement about the theory. I get the impression that you cook up all these ideas, but rarely actually test them in the real world. That's no way to live, if you don't want the negative flak. MK It doesn't really matter what the amateur world thinks of it, I have done my bit in sharing with the ham community and they have shown me their level of competance and civility. in return So I can now move on satrsfied that I truly tried and was rejected and present it to academia where there are many qualified who will judge in a academic manner I think then you will regret the position you have taken as others will. It has already been examined by a qualified engineer in the subject and confirmed that the underlying theme as being valid using other measurement systems which I personaly am not privy to. So I feel confident that when I put a page on the web next week tho it will be in rough laymans terms of someone not skilled in the arts there will be many that will push that sort of thing aside and delve a bit deeper to get at the essence of what I present. With that said I will now leave this parrticular thread as it is now totally off topic. Art |
#5
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On Feb 9, 4:19 pm, "art" wrote:
It doesn't really matter what the amateur world thinks of it, I have done my bit in sharing with the ham community and they have shown me their level of competance and civility. As far as I know, we haven't seen anything yet except a few theories. Where's the beef? in return So I can now move on satrsfied that I truly tried and was rejected and present it to academia where there are many qualified who will judge in a academic manner I think then you will regret the position you have taken as others will. No, I personally could care less. I have no use for the design you propose, assuming a chance that it actually might work.. Academia? I hope you aren't planning on flying to the Boston area. I bet that would hinder your case, rather than help. It has already been examined by a qualified engineer in the subject and confirmed that the underlying theme as being valid using other measurement systems which I personaly am not privy to. There are qualified engineers here. Other measurement systems? Not privy? Hummmm.... So I feel confident that when I put a page on the web next week tho it will be in rough laymans terms of someone not skilled in the arts there will be many that will push that sort of thing aside and delve a bit deeper to get at the essence of what I present. Push what sort of thing behind? I hope it isn't too heavy.. With that said I will now leave this parrticular thread as it is now totally off topic. Well, ok then. MK |
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