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![]() "John" wrote in message ... "Roy Lewallen" wrote in message ... John wrote: I don't know what NEC-2 is able to do. Does this mean I can model folded monopoles? John Sure. But you can't accurately model ones made with twinlead or window line, since NEC-2 or EZNEC can't account for the effect of the dielectric. Roy Lewallen, W7EL Okay, great! I modeled a folded monopole at 434 MHz. Varying the length down from resonance, the element showed the terminal impedance getting lower in resistance and become increasingly capacitive just like the unfolded monopole. I thought it was supposed to be backwards from the usual unfolded monopole such that it would go up in resistance and become inductive.?. John Did you go down to 217 MHz and below? If not, check it out. Should hit another resonance at something like 50,000 +j0, and stay inductive below that. Tam/WB2TT |
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