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Approximately how long is the reflector element of a Yagi antenna for 28.1 MHz?
5.33 metres (17.5 feet)
Reflectors are longer than the driven element. Half-wavelength at 28.1 MHz ≈ 150/28.1 ≈ 5.34m or 468/28.1 ≈ 16.6 ft. Reflectors are typically 5% longer. 5.33m / 17.5 ft seems slightly long, but plausible as reflector length.
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