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Frage 536

Approximately how long is a Yagi’s driven element?

  1. 234 divided by frequency in MHz
  2. 1005 divided by frequency in MHz
  3. 1/4 wavelength
  4. 1/2 wavelengthRichtige Antwort

Erklärung

The driven element of a Yagi is a resonant dipole, so it is about a half wavelength long, with parasitic elements set slightly longer or shorter than that. The quarter-wave and full-wave formulas offered describe other element lengths entirely.

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Frage 536: Approximately how long is a Yagi’s driven element? · FCC Amateur Extra Class (Element 4) · Questena