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I need to simulate 2 helix antennae placed side by side, and see the resultant radiation pattern. But after adding the second antenna with a separate and when I try to simulate 4nec2, only simulated the 1st antenna.

Any thoughts on how to simulate both antennas?

two helix

Only one is getting simulated

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    $\begingroup$ As a start, if in practice both antennas are connected to one or more sources of r-f power, you might check your NEC wire model to be sure that those sources are correctly placed, and configured. $\endgroup$ – Richard Fry Aug 13 at 15:57
  • $\begingroup$ It might be helpful if you edited your question and included the NEC file. $\endgroup$ – Mike Waters Aug 13 at 17:14

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