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Вопрос 170

Which of the following test instruments is used to display spurious signals and/or intermodulation distortion products generated by an SSB transmitter?

  1. Differential resolver
  2. Spectrum analyzerПравильный ответ
  3. Logic analyzer
  4. Network analyzer

Объяснение

Spurious outputs and intermodulation products sit at frequencies away from the wanted carrier, so finding them requires an amplitude-versus-frequency display. A logic analyzer works on digital states and a network analyzer characterizes a device's response to its own stimulus, neither of which shows a transmitter's output spectrum.

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Вопрос 170: Which of the following test instruments is used to display… · FCC Amateur Extra Class (Element 4) · Questena