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Հարց 389

In which direction is the maximum radiation from a VHF/UHF “halo” antenna?

  1. Broadside to the plane of the halo
  2. Opposite the feed point
  3. Omnidirectional in the plane of the haloՃիշտ պատասխան
  4. On the same side as the feed point

Բացատրություն

A halo is a half-wave dipole bent into a nearly closed circle, which averages the dipole's figure-eight pattern around the loop and gives essentially uniform horizontally polarized radiation in the plane of the halo.

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Հարց 389: In which direction is the maximum radiation from a VHF/UHF… · FCC General Class (Element 3) · Questena