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Cecil Moore wrote:
Gene Fuller wrote: Cecil is so good at quoting that he should have no problem with providing the exact unedited words from Kraus that support the arc-cosine analysis. "It is generally assumed that the current distribution of an infinitesimally thin antenna is sinusoidal, ..." Simply look at Kraus' graph in Figure 14-2. A sinusoid with current amplitude equal to 1.0 at the center and current amplitude equal to zero at the end is obviously a cosine wave. Since the magnitude varies from 1.0 at the center to zero at the end, taking the arc-cosine of the magnitude yields the distance from the center in degrees. The key words are "infinitesimally thin," and "generally assumed." With you, Cecil those words become just "thin," and "dead certain." I'm glad you clarified that for us. I was beginning to wonder about Kraus. Now I know it's just Kraus' message suffering from Cecil distortion. 73, Tom Donaly, KA6RUH |
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