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Pregunta 299

What is one reason to use an impedance matching transformer at a transmitter output?

  1. To minimize transmitter power output
  2. To present the desired impedance to the transmitter and feed lineRespuesta correcta
  3. To reduce power supply ripple
  4. To minimize radiation resistance

Explicación

A transmitter delivers its rated power with minimum reflected power only when it sees the load impedance it was designed for, usually 50 ohms, so a matching transformer transforms the actual load to that value. It is about presenting the right impedance, not about reducing output power.

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Pregunta 299: What is one reason to use an impedance matching transformer… · FCC General Class (Element 3) · Questena