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Frage 374

What is the approximate length for a 1/2 wave dipole antenna cut for 3.550 MHz?

  1. 42 feet
  2. 84 feet
  3. 132 feetRichtige Antwort
  4. 263 feet

Erklärung

Applying 468/f gives 468/3.550 = 131.8 feet, which rounds to 132 feet. The 263 foot choice is close to a full wavelength at this frequency (936/3.550 = 264 feet), not a half wave.

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Frage 374: What is the approximate length for a 1/2 wave dipole… · FCC General Class (Element 3) · Questena