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Frage 359

What is an advantage of a 5/8-wavelength whip antenna for VHF or UHF mobile service compared to a 1/4-wave antenna?

  1. It has more gainRichtige Antwort
  2. It radiates at a higher angle
  3. It has lower SWR
  4. It has lower impedance

Erklärung

A 5/8-wavelength whip concentrates more of its radiation at a low angle toward the horizon than a quarter-wave whip, which gives roughly 3 dB of gain for terrestrial contacts. It is not resonant on its own, so it needs a matching network and does not have inherently lower SWR.

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