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Roy Lewallen wrote:
Before you get too carried away, look back in this thread where Cecil posted a URL to his web site where he had an EZNEC (helical wire) model of a coil at the base of a short whip. It showed significant current drop from the bottom to the top, although no significant phase shift. It showed a 10 degree phase shift. I've always said the phase shift is what it is but it is NOT zero. 10 degrees is definitely NOT zero even though you measured zero degrees shift. Wonder what was wrong with your measurements? So in the course of developing your theory, you should explain why this happens, since there are no longer the traveling and standing waves which were on the whip. Oh my, Roy, are you saying that zero ohms doesn't cause a reflection? If so, your misconceptions are worse than I thought. A short to ground causes exactly the same total reflection as an open-circuit, just with different phases. I would have expected you to realize that. I've looked very carefully at the models and concluded that EZNEC is operating well within its capabilities, so the results are valid. Yes, they are and they shoot down your argument. Please explain the results posted at: http://www.qsl.net/w5dxp/travstnd.GIF So for starters, why don't you explain how your theory fits with the existing model results? You first, Roy, since you disagree with EZNEC. -- 73, Cecil http://www.qsl.net/w5dxp |
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