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On 5 Apr, 19:54, Walter Maxwell wrote:
On 5 Apr 2007 18:04:15 -0700, "art" wrote: On 5 Apr, 17:12, Walter Maxwell wrote: On 5 Apr 2007 16:13:12 -0700, "art" wrote: snip Walt, W2DU- Hide quoted text - - Show quoted text - Walt, if you are looking for maximum horizontal or any other polarity it can only be obtained by removal of reception of other polarities, this maximum is obtained by having the radiator at 90 degree multiples with respect to earth. You can prove this to your self anytime by calculating max horizontal gain by progressively tipping a dipole while keeping it resonant until the maximum is reached. If your concern is for total gain without regard to polarity mix then the vertical position total gain will equal the total gain of the tipped dipole. The difference is that one arrangement has a mixture of polarities where-as the tipped antenna will only provide a single polarity. If another element or anything else is added near enough to add reactance then the prior antenna must be adjusted to remove it, thus the reason for remote adjustment which is much cheaper to maintain rather than regular trips up a tower by maintanance men. Hopefully Walter this will bring you up to date. I have no reason for a 300 posting thread as I do not intend to write rev 3 of Reflections or anything else. Regards Art Art, using correct terminology is essential in preventing misunderstandings, as you have done with 'polarity'. You have confused 'polarity' with 'polarization'--the two are not synonomous, but are distinctly different. Sorry, Art, your misuse of this term has been confusing, rather than enlightening. Are you blaming me for the more than 300 postings on this thread? Walt- Hide quoted text - - Show quoted text - Walt Now why would I blame you for over 300 postings? Obviously you have created some confusion which is natural for our hobby since we are an old group which gives justification to "there is no fool like an old fool" Nothing personal. Lets face it we oversell experience when in a lot of cases it is the same experience over and over again. Anybody here who remembers the Sputnik probably would not be able to get a degree today or even the same job. On this tilt thing if you look at patents in the 6 million plus area most would not understand what they were referring to, whereas the present day student understands thing fully since he grew up with digital transmissions. Heck most of us retired before the last ten years which is becoming the heydays of antenna research. Yes, as I get older I make the same mistakes as all old people do and you make provision for other old people unless you think your self as perfect as would a younger person who just got his degree and was up to date. The difference ofcourse is the young student wants to prove things to himself until he gets behind technically when he then asks for proof from others. If I look back at the past arguments on my threads many pull out the 50 year old books that we have stored away. The modern student will look up Google and even if he is a few years out of school would have checked the computor for reference to "adjusting antennas" or "tilting antennas"to get up to date where as the old timer thinks he is still back in the old days so his knoweledge is up to date and cannot adapt to the present situation he there is no reference to that in my books.Odd thing I saw the other day was a book by Terman and would you believe it nowhere in the book does the words of "maxwell" or Gauss" show up so they must be imaginary also. Yup, Walt as you get older you will find that a lot more people are mixed up except you and need to be told so until the time come that more people are saying it to you forcing you to be more tolerant. Frankly a lot of people on this net need to get up to speed with respect to radiation such as tipped antennas e.t.c instead of discarding information in favour of the opportunity to mock while the younger more knowledgable members give a quiet smile to themselves. Walt were you aware of the reasons for tipping? I doubt it because you probably can remember the Sputnik when the standards of education was lower and Google was not around. Never heard you come forward with respect to the Gaussian and Maxwell argument either before or after the young M.I.T guy put every body straight or did you know it anyway but just didn't want to correct people then? Art Art, you say I have created confusion? Over what? Walter, you complained about not getting as many responses as I, I accept that sometimes my threads are as long as 50 posts instead of just a few for agreement Yours is now 300 is it you or others who are confused.You think about it Confusion? How about responding to your misuse of the term 'polarity'? Now that's confusion. And you say that some MIT guy put everybody straight? Just what is it the everybody needed straightening about that the MIT guy is supposed to have done? Well one person finally concurred and nobody refuted this concurrence so you think the majority are correct because they didn't agree? And are you implying that Terman, Kraus, Johnson, et al are wrong, and that we need 'straightening out' because we learned it wrong from these masters of 50 years ago? You remembered it from 50 years ago, that is a lot of difference from truly understanding it. The MIT and another individual from down under agreed with the mathematics that underlined what I was talking about invoking what the masters stated. So it is you who must have learned it wrong 50 years ago but you have time to correct the M.I.T guy and the guy from down under that they had misused mathematics some how and came up with formular that disputes the masters. Actually the guy from MIT gave a terrific response that didnot receive any reject from anybody including you. And you're also saying that our educational standards are better now? Art, what have you been smoking? And are you also saying that the new graduate with no hands-on experience outweighs a graduate of 30 years ago with experience gained during those 30 years? Yes I do unless the experienced guy kept up with progress such as a Professor. When I spoke about polarity and tipping a younger person knowing what I was talking about would have adapted while you who knew nothing about the subject could not adapt. If you are not aware of modern day practices then you would not get hired today. New graduates always get the nod over senior citizens. What planet are you from, Art, certainly not Earth. It is on earth we are talking about when we talk of tilting and the correlattion of gaussian theory with respect to radiation. You have presented nothing with respect to supposed inaccuracy which says you are ignorant of it. Why else does one ridicule another person by moving away from science ? So if you disagree with the tipping process for antennas or if you disagree with the response from M.I.T. then put your stake in the ground and state your superiority in mathematacs rather than driving the stake into the messenger. If you take this small step I assure you this thread will not last as long as yours. You may be able to distort science but you can't refute mathematics by killing the mathematician. Perhaps it is better that you put your eyes and ears back into the ground . On the other hand I would be impressed if you could prove your position but you have shown that you can't by burying your head in the sand. Walter we are all getting older and it is harder to keep up with things, that is something that we all have to accept and you are not immune to it, and it shows Art Think about it, Walt, W2DU- Hide quoted text - - Show quoted text - |