The impedance of an EFHW is dependent on many factors such as surroundings, groung and wire gauge and changes at the higher harmonic frequencies. Has anyone actually measured the antenna?
Mike N2MS
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On 05/08/2025 2:19 AM EDT Mike via groups.io < mail@... >
wrote:
I tested my unun by placing a 2400 ohm resistor in series with the S21
input. This loads the secondary with approximately 2450 ohms which is the
typical source resistance for an EFHW
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Mike G8GYW