Using the gear explained in the previous article about these end-fed dipoles, I performed one run with an additional piece of “counterpoise” wire 0.05 wavelength wire inline with the half-wave radiator.
Various dipoles vs. one with 0.05 wavelength wire.
This was a quick test, but interesting nonetheless. Stay tuned for a more thorough test in the near future with the antenna considerably higher and a far field energy measurement to verify the current magnitudes.
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Looks like the 0.05 is a net loss. I presume the motivation is fig 5 at http://www.aa5tb.com/efha.html. But that's with a resonant feed network, I think LNR is a broadband feed. Might that matter?
1 thought on “Adding 0.05 wavelength wire to EFHW antenna”
Looks like the 0.05 is a net loss. I presume the motivation is fig 5 at http://www.aa5tb.com/efha.html. But that's with a resonant feed network, I think LNR is a broadband feed. Might that matter?
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Looks like the 0.05 is a net loss. I presume the motivation is fig 5 at http://www.aa5tb.com/efha.html. But that's with a resonant feed network, I think LNR is a broadband feed. Might that matter?