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Question #889Antennas and Radio Wave Propagation

The impedance of a half-wave dipole in free space is approximately

  1. 300 ohms
  2. 50 ohms
  3. 600 ohms
  4. 73 ohms ✓ Correct answer
Explanation: Theoretical free-space dipole impedance ≈ 73 Ω.

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