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![]() wrote in message oups.com... Yuri Blanarovich wrote: Yea Tom, it all started with ALL coils, it is MY theory and you can ruin MY theory. What is your theory Yuri? You didn't explain it. 73 Tom Nice twist again! (That was sarcasm and take on your comment about ALL coils) I didn't produce any MY theory. I simply realized that there is something weird (effect) when I burned heatshrink tubing on the bottom of my Hustler 80m coil, W9UCW measured and did experimenting with that and brought to our attention that there is significant difference in the current distribution across the loading coil. W5DXP put some explanations on as far as mechanism of the effect. I give credit where its due, I didn't produce any theory, I simply tried to bring attention to the effect, tried to find explanation and set the record straight for the benefit of hams, who were misled for decades (including myself), provide (with others) correction pointers so we can correctly model antennas and get better, more accurate results. If W7EL can capture the effect and provide tool to model the loading coil (lumped inductance) as what the hairpin of the same inductance does, we have a major improvement in modeling and designing loaded antennas and arrays. Sooo, we have the effect, we have some measurements to quantify it and we have explanations going back to Dr. Nikola Tesla and we are trying to set the record straight and correct the years of false information in the ham literature, going back to J. Belrose first article in ancient QST. What you have? Misinformation on your web site and refusing to admit that you could be wrong (again). Not answering technical questions, nitpicking on things to confuse and cloud the issue "proving" that you are right. Funny how you object to "personal" attacks, when it is the first thing you do when someone posts something that doesn't jive with your understanding of the subject. Been there, you have done it to me few times. Tom, it's not personal attack on YOU, it is correction ("attack") on what you (wrong) say and parade on your web site. The bottom line is, that you claim that loading antenna coil behaves according to "DC circuit laws" and has the same (or almost) current at both ends. When in reality there is quite a difference (talking about case of say quarter wave loaded radiator). The significance is, that the efficiency of the antenna is proportional to the area under the current distribution curve. If that distribution is portrayed wrongly (not showing, calculating drop of current across the coil) then we get false results, which will be magnified in multielement loaded array. So you can keep up the mumbo-jumbo and cloud the issue all you want, reality is there and won't go away. One more experiment that "scientwists" can do: Stick some neon bulbs at the bottom and top of the coil with equal "tail", or just move the neon bulb along the coil whil holding in your hand. I bet you would see that there is noticeable difference in brightness from top to bottom, top being brighter, meaning higher voltage. We know (not mine theory) that if voltage is higher then the current has to be lower, meaning that current at the bottom of the coil is higher than on the top. Meaning that it is not EQUAL as W8JI is insisting on. Nice science project for a 7th grader kid of a ham. (To avoid mumbo-jumbo detours - we are talking say 80m mobile Hustler or similar quarter wave antenna at resonant frequency). No need for phasors, distributed this or that, inside or outside of the coil wire and other "clouds". Can you answer questions that are posted, instead of sidestepping them and nitpicking on unrelated stuff? That's just MY theory, I may be wrong, and I would admit it, if I am shown the right. So can you ANSWER Cecil's question? Where did you get the engineering degree and usage of "JI Engineering"? Yuri, www.K3BU.us |
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