Radio Amateur Quiz Canadian License

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Question A-007-007-002

Most simple horizontally polarized antennas do not exhibit significant directivity unless they are:

Correct Answer

a half wavelength or more above the ground

Explanation

The ground acts as a reflector. For a horizontal antenna, constructive and destructive interference patterns with its ground reflection become more defined and can create lower takeoff angles when the antenna is at least a half-wavelength above ground.

Warning: Generated by AI