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#1
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Cec, I don't doubt your experimental results. It's your extrapolated
imagination and logic which worries me. ;o) ---- Yours, Reg. |
#2
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Reg Edwards wrote:
Cec, I don't doubt your experimental results. It's your extrapolated imagination and logic which worries me. ;o) I didn't imagine those experimental results, Reg, and all I did was report those results. My logic tells me that there is a grain of valid circumstantial evidence in there somewhere. What you need to do to prove your point is present an antenna where the high-current portion is prohibited from radiating yet still yields a high field strength. Example #1: The top half of an electrical 1/4WL antenna is prohibited from radiating by a balanced top hat. Field strength results are similar to a 1/4WL monopole. This has already been presented. Example #2: The bottom half of an electrical 1/4WL antenna is prohibited from radiating by _________________. Fill in the blank and prove that field strength results are similar to a 1/4WL monopole. That's all you need to do to make a believer (instead of a doubter) out of me. -- 73, Cecil http://www.qsl.net/w5dxp -----= Posted via Newsfeeds.Com, Uncensored Usenet News =----- http://www.newsfeeds.com - The #1 Newsgroup Service in the World! -----== Over 100,000 Newsgroups - 19 Different Servers! =----- |
#3
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Its the voltage parts of the antenna which do the radiating.
That is proved by cutting off the top part of the antenna and replacing it with a top hat which has a much larger capacitance so it radiates the power harder. --- Reg. |
#4
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Reg Edwards wrote:
Its the voltage parts of the antenna which do the radiating. That is proved by cutting off the top part of the antenna and replacing it with a top hat which has a much larger capacitance so it radiates the power harder. Reg, let's say we have an elevated antenna system where the radial system and top hat system are identical and balanced. Energy flows back and forth between the radials and top hat. Very little energy is radiated from either the top hat or the radials since they are balanced. Virtually all of the radiated energy comes from the high-current vertical portion of the antenna. Such antennas are described in Appendix II - Short Ground-Mounted Verticals in _Building_and_Using_Baluns_and_Ununs_ by Jerry Sevick, w2fmi. -- 73, Cecil http://www.qsl.net/w5dxp -----= Posted via Newsfeeds.Com, Uncensored Usenet News =----- http://www.newsfeeds.com - The #1 Newsgroup Service in the World! -----== Over 100,000 Newsgroups - 19 Different Servers! =----- |
#5
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Cec, who's Jerry Sevick. I don't seem to have a copy of his works around me
at present. --- Reg. |
#6
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Reg Edwards wrote:
Cec, who's Jerry Sevick. I don't seem to have a copy of his works around me at present. He's accepted by most as *the* ham balun guru. Some disagree. -- 73, Cecil http://www.qsl.net/w5dxp -----= Posted via Newsfeeds.Com, Uncensored Usenet News =----- http://www.newsfeeds.com - The #1 Newsgroup Service in the World! -----== Over 100,000 Newsgroups - 19 Different Servers! =----- |
#7
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On Wed, 10 Mar 2004 14:34:38 -0600, Cecil Moore
wrote: Reg Edwards wrote: Cec, who's Jerry Sevick. I don't seem to have a copy of his works around me at present. He's accepted by most as *the* ham balun guru. Some disagree. Yeah, I'm one who disagrees! Walt, W2DU |
#8
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He's accepted by most as *the* ham balun guru. Some disagree.
====================== How can anybody make himself a guru about such a simple, inactive, mundane device as a balun? Now if it was a conjugate match! |
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