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Ron wrote:
The Moxen rectangle is still a little too large. If it's really only a little too large, you might consider the earlier VK2ABQ which is square rather than rectangular, and thus has a slightly smaller turning circle. The performance isn't as good as the Moxon shape, but it will fit into some spaces where the Moxon won't. Any thoughts on just center loading the elements of a yagi? Anybody ever tried or know how to calculate element lengths or required inductance? It has often been done. The method of choice now would be to decide how long the elements and the boom can be, and then experiment with various loading configurations using a modeling program. As the elements get shorter, remember that (a) the losses increase, as in all loaded antennas; and (b) the shortened elements no longer interact in quite the same way as full-length elements do. -- 73 from Ian G3SEK 'In Practice' columnist for RadCom (RSGB) Editor, 'The VHF/UHF DX Book' http://www.ifwtech.co.uk/g3sek |
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