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On Thu, 23 Mar 2006 09:57:04 GMT, "David J Windisch"
wrote: "BFD" ida "Before Final Decision", n'est ce pas? "Richard Clark" wrote in message .. . Well, let's start with Yuri's emphasized and cogent assertion: "The current in a typical loading coil in the shortened antennas BIGSNIP of a howler Hi David, I would have thought so on its completion. However, the problem of the poor specification has given rise to the prospects that Yuri's vertical was never resonated by the loading coil at all. I find it strange that I had to wade through a ton of verbal chatter to glean minutiae such as: "(with hat) and reresonating" where the coil had been moved throughout the length of the radiator and the system "reresonated" back in the shack. The long and short of this was I struggled to make the antenna resonant in the 40M band, and achieved it with yet another shortfall of specification. The coil itself was barely mentioned except for its diameter. Sure, a picture was provided, but those meters that I used to scale it look very much like 3½" panel mounts and are as wide as the coil. By using them as a benchmark, I reckoned the coil for being 20" long at 4 turns per inch. Later, when I accepted the "reported" coil diameter of 2½", I forgot to shorten the coil to 10" and increase the pitch to 6tpi. Needless to say results need to be revisited, but the only change will be on the wrong side of the decimal point for those "debating" the matter. When thread lengths get to be 500+ the participation has long ceased to be about any technical content. Like those who argue that POS EZNEC reports erroneous results when they use it wrong; this is basically the story of the man who went to the doctor to complain: "It hurts when I do this!" Doctor: "Stop doing that." 73's Richard Clark, KB7QHC |
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