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سؤال 313

What is the name of the process that changes the instantaneous frequency of an RF wave to convey information?

  1. Frequency convolution
  2. Frequency transformation
  3. Frequency conversion
  4. Frequency modulationپاسخ درست

توضیح

Varying the instantaneous frequency of the carrier in step with the information signal is the definition of frequency modulation. Frequency conversion is a tempting name but describes mixing a signal to a different frequency, which carries no new information.

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شروع تمرین
سؤال 313: What is the name of the process that changes the… · FCC General Class (Element 3) · Questena