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Frage 373

What is the approximate length for a 1/2 wave dipole antenna cut for 14.250 MHz?

  1. 8 feet
  2. 16 feet
  3. 24 feet
  4. 33 feetRichtige Antwort

Erklärung

The standard approximation for a half-wave wire dipole is 468/f in feet with f in MHz, and 468/14.250 = 32.8 feet, which rounds to 33. The 16 foot choice is the quarter-wave length, 234/14.250 = 16.4 feet.

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Frage 373: What is the approximate length for a 1/2 wave dipole… · FCC General Class (Element 3) · Questena