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Frage 379

How does antenna gain in dBi compare to gain stated in dBd for the same antenna?

  1. Gain in dBi is 2.15 dB lower
  2. Gain in dBi is 2.15 dB higherRichtige Antwort
  3. Gain in dBd is 1.25 dBd lower
  4. Gain in dBd is 1.25 dBd higher

Erklärung

dBd is referenced to a half-wave dipole, which itself has 2.15 dB of gain over an isotropic radiator, so the same antenna's gain figure is 2.15 dB larger when expressed in dBi.

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Frage 379: How does antenna gain in dBi compare to gain stated in dBd… · FCC General Class (Element 3) · Questena