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Pregunta 440

How can an oscillator’s microphonic responses be reduced?

  1. Use NP0 capacitors
  2. Reduce noise on the oscillator’s power supply
  3. Increase the gain
  4. Mechanically isolate the oscillator circuitry from its enclosureRespuesta correcta

Explicación

Because microphonics originate in mechanical vibration reaching the frequency-determining parts, the remedy is mechanical: isolate or shock-mount the oscillator assembly from the enclosure and build it rigidly so vibration cannot move the components.

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Pregunta 440: How can an oscillator’s microphonic responses be reduced? · FCC Amateur Extra Class (Element 4) · Questena