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![]() "Owen Duffy" wrote in message ... "Dave" wrote in : ... were easy to install. Seems I read somewhere that contrary to conventional wisdom, the shield on a shielded loop doesn't actually shield at all, but becomes the antenna element. Anyone know anything about that line of thought? I obviously know nothing, and am trying to learn. Just don't know where to focus my energies. I have written a simple explanation on the operation of the so called 'shielded loop' at http://www.vk1od.net/shieldedloop/index.htm . You may find the article of interest. If you read and understand the content of the article, you will see the pitfalls in using tape to 'shield' a loop. Owen Hello Owen, Sorry I am just now getting back to you on this, but I have been reading and studying your article. I constructed a loop somewhat like the one you discuss, but have one question: you speak of a "feed tee" from which the feedline extends. Should I be able to buy such a T-shaped device at my local parts outlet? I asked about such there one time, and was practically laughed at. But it seems such would be very handy for antenna builders of all types. If my local parts distributer doesn't have this item, where can I get it and what should I call it ("feed tee"?) The loop I constructed is extremely primitive, but still functions nearly as well as the 110' longwire antenna I have used for years. And it is *directional*, though sometimes noisy (probably because the feedline does *not* exit and travel symmetrically away from the loop, I am guessing.) The main way in which my loop differs from your design (other than the feedline asymmetry) is the fact that the shield is not cut away from the center conductor opposite the feed input. Can you tell me what function this feature serves? Thanks for your help. Dave |
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