-- card: 76138 from stack: in
-- bmap block id: 0
-- flags: 4000
-- background id: 4601
-- name: #265
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  global group,rightone
  put 23 into group
  put "B" into rightone
  pass openCard
end openCard



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Question #23

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3BI-6.3 How does the proximity to the ground affect the radiation pattern of a horizontal dipole HF antenna?

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If the antenna is too far from the ground, the pattern becomes unpredictable

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If the antenna is less than one-half wavelength from the ground, reflected radio waves from the ground distort the radiation pattern of the antenna

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A dipole antenna's radiation pattern is unaffected by its distance to the ground

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If the antenna is less than one-half wavelength from the ground, radiation off the ends of the wire is reduced