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Вопрос 372

Which of the following is an advantage of using a horizontally polarized as compared to a vertically polarized HF antenna?

  1. Lower ground lossesПравильный ответ
  2. Lower feed point impedance
  3. Shorter radials
  4. Lower radiation resistance

Объяснение

A horizontal antenna at reasonable height couples less energy into the soil close by, while a vertical's return currents flow through the ground near its base where finite conductivity dissipates power, so the horizontal antenna has lower ground losses.

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Вопрос 372: Which of the following is an advantage of using a… · FCC General Class (Element 3) · Questena