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On Thu, 08 Mar 2007 11:18:23 -0800, Richard Clark
wrote: #1 -1.8421 3.0697 83.6493 -25.311 25.3112 82.7236 Hi Art, Anticipating you can't answer the last one about mechanical orientation, let's examine your proficiency in using a computor with this one element which in your words displays: "Drive impedance of Element #1 equals 30.7 + j 0.1 ohms, SWR = 1.01" If we skip the modeling, once again simple bench work, not: 1. A text book; 2. NEC; 3. A computer; 4. A new theory would reveal a SWR of 1.01 for a drive Z of 31 Ohms is a most curious departure from convention - or did Gauss mandate a 31 Ohm system (you certainly don't put this into your words). The next error in light of this is (your words): "Drive impedance of Element #2 equals 1121 + j 1554 ohms, SWR = 3.65" 3.65:1 really? In the same 31 Ohm system? A new one for each element? We need only look at the third example with nearly the same mismatch, but a wildly different drive impedance to wonder from your words that: "Drive impedance of Element #3 equals 16.2 - j 22.4 ohms, SWR = 3.64" 3.64:1 really? In what system are all these elements residing? 73's Richard Clark, KB7QHC |
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