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Noise level between two ant types
Gene Fuller wrote:
I forgot that rain drops and antenna wires are identical. The behavior of two identical capacitors certainly covers all charge transfer phenomena. I didn't say what I wanted to say in my last reply to this posting so I canceled my first reply and am substituting this one for it. It the older reply made it off my server, please ignore it. You obviously misunderstood what I said. I didn't say the charge equalized between the charged particle and the wire. What I said is after the charge is deposited on the wire and the particle that did the depositing of the charge is long gone, the charge deposited by that particle will equalize between two identical dipole elements that are link coupled. Let's say we have a perfectly symmetrical link-coupled dipole and we deposit one coulomb on one element. Please explain the laws of physics that prohibit those two dipole elements from equalizing at the same charge. -- 73, Cecil http://www.qsl.net/w5dxp |
Noise level between two ant types
Cecil Moore wrote: Apples and oranges, Tom. Since nobody has argued that high humidity prevents corona during transmitting, your statement is just an unfair obfuscation of the facts. On a clear-sky, high-humidity day, the high humidity prevents corona on *receiving* antennas. The antenna at HCJB did *NOT* report any corona problems during receive. Typical of Cecil Moore. Do you think you are the center of attention and no one else is worth talking to? I wasn't even talking to you! Look back Cecil. K0TAR said there couldn't be corona in the rain. That's incorrect. Speak when spoken to Cecil. 73 Tom |
Noise level between two ant types
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Noise level between two ant types
wrote Typical of Cecil Moore. Do you think you are the center of attention and no one else is worth talking to? I wasn't even talking to you! Look back Cecil. K0TAR said there couldn't be corona in the rain. That's incorrect. Speak when spoken to Cecil. 73 Tom Ooooops! Condx is worsening. Now besides being scientwist's guru, purporting to be the Hitler of free speech. Cecil, can you voluntarily relinquish your center of attention title to the Allknowing One, please, in the name of preserving salinity of the Internet? Shades of Freaktenna. :-) Happy Father's Day to all brave fathers! Yuri da BUm not from Tibet, but lived in Zemplin (free dB to anyone identifying the prefix) |
Noise level between two ant types
Tom Ring wrote: I not convinced that corona is what I'm hearing, but I'm no longer convinced it's not, either. That's good. You shouldn't be convinced. Especially if it is something just accepted and circulated without experimental results confirming it. There are a lot of odd ideas that are deeply rooted, especially when it comes to electric fields, noise, and charges. Look at the shielded loop thread that just went on! Someone started a whole thread just to show the shield blocked electric fields and "noise", when all the shield really does is help balance the antenna and eleimnate common mode responses. The "dc path eliminates noise" and the "noise comes from each particle hitting the antenna and a dc path reduces it" are nearly as far fetched. The potential difference is between the earth and space above the earth. Clouds can also become "charged" and have a large potential difference to earth and anything connected to earth, especially in bad weather. That's why the world has lightning hits! Anything connected to earth and sticking up and out in the air will have a huge potential difference between it and anything in the space around it at the same height or higher. The sharper, higher, and more extended the conductive protrusions are the worse the problem is, and the best ground connection in the world won't reduce it (it can actually only make it worse). Rain or snow or dust won't make the problem less either. Neither will high humidity. I spent a lot of time and money trying to fix what I thought was the problem (the particles making noise) until I learned the folklore was wrong. 73 Tom |
Noise level between two ant types
Yuri Blanarovich wrote: Ooooops! Condx is worsening. Now besides being scientwist's guru, purporting to be the Hitler of free speech. Cecil, can you voluntarily relinquish your center of attention title to the Allknowing One, please, in the name of preserving salinity of the Internet? Shades of Freaktenna. :-) Happy Father's Day to all brave fathers! Yuri da BUm not from Tibet, but lived in Zemplin (free dB to anyone identifying the prefix) .....and as Dr. Phil would say, "How's that shielded loop thread doing Yuri? Is it working for you?" |
Noise level between two ant types
Yuri Blanarovich wrote:
wrote Look back Cecil. K0TAR said there couldn't be corona in the rain. K0TAR replied: Hang on, I didn't say "couldn't", ... Speak when spoken to Cecil. God has obviously died and left W8JI in charge of r.r.a.a. :-) Cecil, can you voluntarily relinquish your center of attention title to the Allknowing One, please, in the name of preserving salinity of the Internet? Just as soon as He lives up to His omniscient self-image. :-) -- 73, Cecil http://www.qsl.net/w5dxp |
Noise level between two ant types
wrote:
The "dc path eliminates noise" and the "noise comes from each particle hitting the antenna and a dc path reduces it" are nearly as far fetched. I already explained that to you, Tom. Perhaps you missed it. In the following diagrams, CH is the charge transferred to the antenna by a charged particle or any other means. Given a non-folded dipole, any equalizing of the charge between the two identical dipole elements must flow through the link where the noise is picked up by the receiver. -------CH------+ +--------------- | | / / | | Link to receiver Turning the non-folded dipole into a folded dipole provides a *local DC path* between the two elements. Most of the noise will follow that DC path between elements instead of traveling down the transmission line, through the link, and back up the transmission line. Hint: Ohm's law. DC path between elements +-------------------------------+ +-------CH-----+ +--------------+ | | / / | | Link to Receiver You avoided replying to this last time. One wonders why. Please explain why you think the charge on the folded dipole would not take the DC path of least resistance. -- 73, Cecil http://www.qsl.net/w5dxp |
Noise level between two ant types
wrote: If the noise is at a different frequency than the good signal, then the receiver itself will sort it all out. There really wasn't any good way to answer an idea so fatally flawed. I ignored it thinking you would figure it out on your own later, or that Yuri would help you get a different perspective on things. 73 Tom By the way Cecil, I'm absolutely serious. I was very surprised you didn't think through what you drew and what you proposed before posting it. I expected even Yuri would catch the mistake you made and correct you. 73 Tom |
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