Which antenna is omni-directional?

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Multiple Choice

Which antenna is omni-directional?

Explanation:
Omni-directional antennas put out energy evenly in all directions around the horizon. A vertical whip is a classic example because its vertical element creates a pattern that looks the same in every azimuth, giving uniform coverage around the antenna. The other types are directional: a fan focuses energy in a particular plane, a dipole tends to a bidirectional pattern in the horizontal plane, and a Yagi concentrates energy in one direction. So the whip best fits the omni-directional idea.

Omni-directional antennas put out energy evenly in all directions around the horizon. A vertical whip is a classic example because its vertical element creates a pattern that looks the same in every azimuth, giving uniform coverage around the antenna. The other types are directional: a fan focuses energy in a particular plane, a dipole tends to a bidirectional pattern in the horizontal plane, and a Yagi concentrates energy in one direction. So the whip best fits the omni-directional idea.

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