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Pregunta 242

What is the half-power bandwidth of a resonant circuit that has a resonant frequency of 3.7 MHz and a Q of 118?

  1. 436.6 kHz
  2. 218.3 kHz
  3. 31.4 kHzRespuesta correcta
  4. 15.7 kHz

Explicación

Dividing the resonant frequency by Q gives the bandwidth between the half-power points, which is about 31.4 kHz here. The larger answers result from multiplying or from an order-of-magnitude slip.

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Pregunta 242: What is the half-power bandwidth of a resonant circuit that… · FCC Amateur Extra Class (Element 4) · Questena