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#91
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Dipole-2 different wire sizes?
Szczepan Bialek wrote:
napisa? w wiadomo?ci ... Szczepan Bialek wrote: All the links I quote are wrote by "people who have spent decades building and using antennas in the real world, people ranging in education from knowledgable hobbyiests to degreed engineers and scientists." Are you one of them? S* Am I one of what? If you mean what are MY qualifications to call you a babbling idiot, I have been building and using antennas for about 50 years and have a degree in Electrical and Electronic Engineering. How long have you been building and using antennas and what degrees do you have? Instead writting the "babbling idiot" write a long article on antennas without ground. Why as there already exists thousands and thousands of such literature references? Howver you are too much of an ignorant, ineducable, babbling idiot to be able to read any of them and understand them. You were totally unable to understand something as simple as: http://en.wikipedia.org/wiki/Dipole_antenna and started babbling about the colors on the graphics showing you haven't a clue what the article was actually saying. You wrote: "Only end fed monopoles need radials". Do you mean that "Only end fed monopoles need ground"? No, I meant what I said. You, however, are too much of an ignorant, ineducable, babbling idiot to be able to understand it. To be precise, only end fed monopoles need a counterpoise. The counterpoise can consist of either radials, a large conductive area fabricated for the purpose, or the Earth itself IF the surface conductivity is high enough. The words "ground", "radial", and "counterpoise" in relation to antennas are three diffent things with three different meanings but you are too much of an ignorant, ineducable, babbling idiot to be to understand that. A quarter wave, end fed vertical monopole with a set of radials does NOT need a connection to ground. The radials serve as the counterpoise. As you are an ignorant, ineducable, babbling idiot you will not understand any of this and will reply with babbling nonsense. |
#92
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Dipole-2 different wire sizes?
Szczepan Bialek wrote:
"Sal M. O'Nella" napisa? w wiadomo?ci ... "tom" wrote in message . net... On 7/6/2012 3:46 AM, Szczepan Bialek wrote: napisal w wiadomosci Do you agree that such "dipole" is the monopole? S* Absolutely not. tom K0TAR Is this guy the ghost of Allen Funt? He has set up such an improbable situation with his nonsense that we are unable to grasp it, so we suspend disbelief. Try to grasp that: The Marconi antenna is vertical. It consists of an antena and the counterpoise. The counterpoise can be in form of the vertical wire. So such monopole is vertical. No, it can not as by definition a Marconi antenna is a quarter wave, end fed vertical fed against ground. The "dipole" antenna with the coax and without the balun is exactly like te above set. No, it is not as the generally used meaning of the word "dipole" without any qualifiers is a half wave, center fed antenna of any orientation but MOST are oriented horizontally. The only difference is that the second set is horizontal. The difference is one is a quarter wave long and end fed and the other is a half wave long and center fed. Too difficult? Yes, that is too difficult for an ignorant, ineducable, idiot like you to understand. |
#93
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Dipole-2 different wire sizes?
Szczepan Bialek wrote:
"tom" napisal w wiadomosci . net... On 7/6/2012 3:46 AM, Szczepan Bialek wrote: napisal w wiadomosci Do you agree that such "dipole" is the monopole? S* Absolutely not. tom "Try to grasp that: The Marconi antenna is vertical. It consists of an antenna and the counterpoise. The counterpoise can be in form of the vertical wire. So such monopole is vertical. The "dipole" antenna with the coax and without the balun is exactly like the above set. The only difference is that the second set is horizontal. Too difficult? S* The difference is one is a quarter wave length long and end fed and the other is a half wave length long and center fed. You are to much of an ignorant, ineducable, idiot to be able to understand the difference. |
#94
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Dipole-2 different wire sizes?
Szczepan Bialek wrote:
"Rob" napisa? w wiadomo?ci ... Szczepan Bialek wrote: "tom" napisal w wiadomosci . net... On 7/6/2012 3:46 AM, Szczepan Bialek wrote: napisal w wiadomosci Do you agree that such "dipole" is the monopole? S* Absolutely not. tom "Try to grasp that: The Marconi antenna is vertical. It consists of an antenna and the counterpoise. The counterpoise can be in form of the vertical wire. So such monopole is vertical. When you have a vertical 1/4 wavelength antenna with a vertical 1/4 wavelength "counterpoise" below it, you don't have a monopole, you have a dipole. The real dipole need the ladder line (the two wires). The coax shield is connected to the ground. Ignorant babble of an ineducable idiot. It is all explained in http://en.wikipedia.org/wiki/Dipole_antenna but you are too stupid to be able to understand even the pictures. You should write "dipole". In NASA their dipole and your"dipole" are the quite different things. Word salad babble with no meaning as to be expected from an idiot. |
#95
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Dipole-2 different wire sizes?
"Szczepan Bialek" wrote in message ... snip Marconi wrote that all antennas needs ground. It is obvious that "the antenna with the two legs where the one leg is connected to the shield of a coax" is the Marconi antenna. It is not the dipole antenna. The rest of your antennas (small power) can have the ground from AC supply or chassis. S* Brilliant! I wish there were some way to preserve these teachings. Maybe I can take a course and learn how to write. Then, if I had a pencil, I could copy it all down, if I had some paper. Would that work? "Sal" (KD6VKW) |
#96
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Dipole-2 different wire sizes?
somebody wrote in message ... snip We (the group excluding Szczepan) have some good discussions. Szczepan can be amusing in the views he puts forward. I can't work out whether he is trying to tease us or really is confused. Which is why I made my reference to Allen Funt of "Candid Camera." Funt created preposterous situations and yet people tried their darndest to make something real out of it. I recall a car with no engine whose driver rolled it downhill into a service station. The driver, Funt's attractive co-host, insisted that she had driven around town all day and wanted the mechanic to check the car because it didn't seem to have much power. In a perfect world, when the mechanic popped the hood, he would have laughed and the "bit" would be spoiled. But no! He tried eight ways to explain to her that she COULDN'T have been driving around town. She just sweetly continued the hoax as several other mechanics came over to check out the action. Classic! Szczepan is that car with no engine and we are those mechanics. :-) 73, "Sal" |
#97
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Dipole-2 different wire sizes?
Gosh Joel -- see what you started!! :-)
Irv VE6BP "Joel365" wrote in message ... I have a dipole with 134 feet of 20 gauge insulated copper wire. What would happen if I wanted to replace one leg (67 feet) with 18 gauge copper clad insulated steel wire but chose to keep the other leg with the 20 gauge wire? Tks, Joel -- Joel365 |
#98
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Dipole-2 different wire sizes?
napisał w wiadomości ... You were totally unable to understand something as simple as: http://en.wikipedia.org/wiki/Dipole_antenna "The quarter wavemonopole antenna is a single element antenna fed at one end, that behaves as a dipole antenna." Are you able to understand something as simple as the above? To be precise, only end fed monopoles need a counterpoise. The radials serve as the counterpoise. The Author in Wiki describes the "dipole" used by radio-amateurs. Such dipole is simply "The quarter wavemonopole antenna". S* |
#99
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Dipole-2 different wire sizes?
napisał w wiadomości ... Szczepan Bialek wrote: The Marconi antenna is vertical. It consists of an antena and the counterpoise. The counterpoise can be in form of the vertical wire. So such monopole is vertical. The "dipole" antenna with the coax and without the balun is exactly like te above set. No, it is not as the generally used meaning of the word "dipole" without any qualifiers is a half wave, center fed antenna Radio-amateurs have "dipole" where one leg is end fed and the other is connected to the grounded shield of the coax. You should know that the true dipole is directional. Are your "dipoles" directional? S* |
#100
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Dipole-2 different wire sizes?
"Rob" napisał w wiadomości ... Szczepan Bialek wrote: You should write "dipole". In NASA their dipole and your"dipole" are the quite different things. What do you mean with "In NASA"? "The Hertzian dipole Consider two small spherical conductors connected by a wire. Suppose that electric charge flows periodically back and forth between the spheres." In " NASA" antennas (eg. phase radars) the each "sphere" is fed from special feeder. If are the two sphere we have a dipole (Hertzian dipole). In Marconi antenna is only one "sphere". It is the monopole. Do you have exactly the same voltages in the both ends of your "dipole"? S* |
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