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#1
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O.K. Jerry so you are having problems with me and I can understand
that. So are you saying I should put an end to this thread before I get deeper into a hole? I am a nothing now tho one time I worked for G.E. as an engineer to get a retirement pension but that is in the past because I also am old and have the normal frailties that come with old age and where maybe I should consider myself past it and fade away! Many have said that so perhaps I should fade away gracefully and continue the hobby in isolation Jerry Martes wrote: "art" wrote in message oups.com... Jerry, Are you concurring with his judgement that I am a blithering idiot and he gets your vote? I find it so hard to believe that engineers need only to read the first page of anything and determine from that and with their perceived knowledge they can trash a complete paper. I am trying to state things in an extremely elementary way so that aspiring hams on the side lines can get an understanding of my scheme of things with respect to this new antenna array aproach which differs from that of a yagi and whose benefits I will get to later if I am allowed to Hi Art Show me some numbers and some data and I'll change my mind. I never said that you were a blithering idiot. I am not qualified to make a statement like that about someone I dont know. But, you do write alot of text in which you apparently dont care about anyone being able to understand. Blithering idiots do that too. Please be aware, I really like real technical challenges that dont require alot of theoretical math type proofs. But, when the challenge is to prove you wrong (or right) about the "Efficiency" of a Yagi I'd anticipate there would be some data (measured or calculated) coming from you. I havent seen the data. I too find it hard to believe that engineers (in general)need to read only the first page of a paper in order to understand the entire text. I used to work with alot of engineers. I really admire their ability to think analytically. I consider engineers to be smart people , but reading only one page of a mulitpage document then be sure the entire paper is trash. I do believe that a perspicacious, experienced engineer has to be able to perceive if the rest of any paper is worth reading if the first page is written as though it was authored by a blithering idiot. Otherwise that engineer could waste alot of valuable time. I am not an aspiring HAM, but I once was. Now I'm an old, kinda ignorant, HAM. They are probably quite similar. But, Art, I just have alot of difficulty trying to understand your posts. Maybe you have a "paper" that I could study. Tell me where I can read it. I still like to learn new things. My advice to you, Art, is Pay close attention to the advice of the really good engineers that post here on this forum. If you cant identify them, ask Richard Clark. He's one of them. |
#2
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Is there anybody else that is having the same problem as Jerry or is
anybody upto speed with me? May be this would be a good time to pause so we can smooth out some of these difficulties before we move on and thus salvage something from this new aproach to antennas art wrote: O.K. Jerry so you are having problems with me and I can understand that. So are you saying I should put an end to this thread before I get deeper into a hole? I am a nothing now tho one time I worked for G.E. as an engineer to get a retirement pension but that is in the past because I also am old and have the normal frailties that come with old age and where maybe I should consider myself past it and fade away! Many have said that so perhaps I should fade away gracefully and continue the hobby in isolation Jerry Martes wrote: "art" wrote in message oups.com... Jerry, Are you concurring with his judgement that I am a blithering idiot and he gets your vote? I find it so hard to believe that engineers need only to read the first page of anything and determine from that and with their perceived knowledge they can trash a complete paper. I am trying to state things in an extremely elementary way so that aspiring hams on the side lines can get an understanding of my scheme of things with respect to this new antenna array aproach which differs from that of a yagi and whose benefits I will get to later if I am allowed to Hi Art Show me some numbers and some data and I'll change my mind. I never said that you were a blithering idiot. I am not qualified to make a statement like that about someone I dont know. But, you do write alot of text in which you apparently dont care about anyone being able to understand. Blithering idiots do that too. Please be aware, I really like real technical challenges that dont require alot of theoretical math type proofs. But, when the challenge is to prove you wrong (or right) about the "Efficiency" of a Yagi I'd anticipate there would be some data (measured or calculated) coming from you. I havent seen the data. I too find it hard to believe that engineers (in general)need to read only the first page of a paper in order to understand the entire text. I used to work with alot of engineers. I really admire their ability to think analytically. I consider engineers to be smart people , but reading only one page of a mulitpage document then be sure the entire paper is trash. I do believe that a perspicacious, experienced engineer has to be able to perceive if the rest of any paper is worth reading if the first page is written as though it was authored by a blithering idiot. Otherwise that engineer could waste alot of valuable time. I am not an aspiring HAM, but I once was. Now I'm an old, kinda ignorant, HAM. They are probably quite similar. But, Art, I just have alot of difficulty trying to understand your posts. Maybe you have a "paper" that I could study. Tell me where I can read it. I still like to learn new things. My advice to you, Art, is Pay close attention to the advice of the really good engineers that post here on this forum. If you cant identify them, ask Richard Clark. He's one of them. |
#3
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![]() Hi Art Since you top post I guess it is appropriate for me to do so also. I assume you make the comment about "fade away" without really expecting to do so. I still want to see data, any data that applies to your statement that Yagiis are inefficient antennas. As far as I know, you are correct about Yagi efficiency. I have been trying to understand how it can be determined that Yagiis are inefficient. At the beginning of this thread, I anticipated reading some data that I could understand. I have begun to think that data on Yagi efficiency probably doesnt exist. I encourage to show that I'm wrong about the data. Jerry "art" wrote in message ups.com... O.K. Jerry so you are having problems with me and I can understand that. So are you saying I should put an end to this thread before I get deeper into a hole? I am a nothing now tho one time I worked for G.E. as an engineer to get a retirement pension but that is in the past because I also am old and have the normal frailties that come with old age and where maybe I should consider myself past it and fade away! Many have said that so perhaps I should fade away gracefully and continue the hobby in isolation Jerry Martes wrote: "art" wrote in message oups.com... Jerry, Are you concurring with his judgement that I am a blithering idiot and he gets your vote? I find it so hard to believe that engineers need only to read the first page of anything and determine from that and with their perceived knowledge they can trash a complete paper. I am trying to state things in an extremely elementary way so that aspiring hams on the side lines can get an understanding of my scheme of things with respect to this new antenna array aproach which differs from that of a yagi and whose benefits I will get to later if I am allowed to Hi Art Show me some numbers and some data and I'll change my mind. I never said that you were a blithering idiot. I am not qualified to make a statement like that about someone I dont know. But, you do write alot of text in which you apparently dont care about anyone being able to understand. Blithering idiots do that too. Please be aware, I really like real technical challenges that dont require alot of theoretical math type proofs. But, when the challenge is to prove you wrong (or right) about the "Efficiency" of a Yagi I'd anticipate there would be some data (measured or calculated) coming from you. I havent seen the data. I too find it hard to believe that engineers (in general)need to read only the first page of a paper in order to understand the entire text. I used to work with alot of engineers. I really admire their ability to think analytically. I consider engineers to be smart people , but reading only one page of a mulitpage document then be sure the entire paper is trash. I do believe that a perspicacious, experienced engineer has to be able to perceive if the rest of any paper is worth reading if the first page is written as though it was authored by a blithering idiot. Otherwise that engineer could waste alot of valuable time. I am not an aspiring HAM, but I once was. Now I'm an old, kinda ignorant, HAM. They are probably quite similar. But, Art, I just have alot of difficulty trying to understand your posts. Maybe you have a "paper" that I could study. Tell me where I can read it. I still like to learn new things. My advice to you, Art, is Pay close attention to the advice of the really good engineers that post here on this forum. If you cant identify them, ask Richard Clark. He's one of them. |
#4
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On Tue, 05 Dec 2006 03:55:50 GMT, "Jerry Martes"
wrote: I have been trying to understand how it can be determined that Yagiis are inefficient. Hi Jerry, That, in fact, is quite very simple. Allow that every living person on this planet (arbitrarily assign that number to be 6 Billion) has a receiver that is receiving you with arm chair copy (arbitrarily assign that to be 10dB over S-9) to your signal (arbitrarily assign that to be 100W) applied to your antenna (arbitrarily assumed to be a Yagi). What is the Yagi efficiency? S-9 is 50µV into 50 Ohms and through various mental gymnastics we can pin that down to being 50 picoWatts - but wait! There's 10dB more! call it ½ nanoWatt.... Aggregate that over the entire Earth's total population eagerly awaiting the news of your power efficiency. 3W total absorption. 3% efficient. Now, try something simple like raising that efficiency one notch, and still hitting ALL 6 Billion people. Hint, the Yagi couldn't satisfy this in the first place because of a property called directivity, so a design that is "more efficient" is even more mythical ;-) I dare say no one here can prove to be 0.001% efficient in these terms. [Must be validated through QSL cards.] Efficiency: Can't live with it; Can't live without it! 73's Richard Clark, KB7QHC |
#5
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![]() "Richard Clark" wrote in message ... On Tue, 05 Dec 2006 03:55:50 GMT, "Jerry Martes" wrote: I have been trying to understand how it can be determined that Yagiis are inefficient. Hi Jerry, That, in fact, is quite very simple. Allow that every living person on this planet (arbitrarily assign that number to be 6 Billion) has a receiver that is receiving you with arm chair copy (arbitrarily assign that to be 10dB over S-9) to your signal (arbitrarily assign that to be 100W) applied to your antenna (arbitrarily assumed to be a Yagi). What is the Yagi efficiency? S-9 is 50µV into 50 Ohms and through various mental gymnastics we can pin that down to being 50 picoWatts - but wait! There's 10dB more! call it ½ nanoWatt.... Aggregate that over the entire Earth's total population eagerly awaiting the news of your power efficiency. 3W total absorption. 3% efficient. Now, try something simple like raising that efficiency one notch, and still hitting ALL 6 Billion people. Hint, the Yagi couldn't satisfy this in the first place because of a property called directivity, so a design that is "more efficient" is even more mythical ;-) I dare say no one here can prove to be 0.001% efficient in these terms. [Must be validated through QSL cards.] Efficiency: Can't live with it; Can't live without it! 73's Richard Clark, KB7QHC Hi Richard All kidding aside, I have actually learned things thru this thread. I had previously considered Efficiency to be a term applied to I squared R losses. Sure, I know about Aperture Efficiency, but I never knew about Beam Efficiency till someone presented a reference to a site mentioning it. But, if that previous thread referred to a Yagi as being inefficient due to its I squared R losses, I want to see the data supporting that claim. Incidentally, Pico Blvd doesnt go thru Watts |
#6
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Wow, this thread has gone way past my minute understanding of charges
and fields.. I'm always amazed everytime a refrigerator magnet sticks... Where is Dick Feinman when I need him to explain all this... As far as I can tell Art, you intend to load up a balloon until it bursts... That's gotta be hard on the amp when it goes... denny / k8do |
#7
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Denny wrote:
Wow, this thread has gone way past my minute understanding of charges and fields.. I'm always amazed everytime a refrigerator magnet sticks... Where is Dick Feinman when I need him to explain all this... You can purchase and download a lot of his physics lectures as pod casts from Apple's Itunes. - Galen, W8LNA |
#8
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On Tue, 05 Dec 2006 06:56:40 GMT, "Jerry Martes"
wrote: But, if that previous thread referred to a Yagi as being inefficient due to its I squared R losses, I want to see the data supporting that claim. Hi Jerry, You may as well abandon that expectation and everything related to it. Incidentally, Pico Blvd doesnt go thru Watts Does it cross de Gallo? 73's Richard Clark, KB7QHC |
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