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Communication SystemsReceivers

In a superheterodyne receiver, the intermediate frequency is produced by a?

  • AMixer
  • BPower amplifier only
  • CEnvelope capacitor only
  • DAntenna reflector
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Correct Answer: A. Mixer
Explanation: The mixer combines the RF input and local-oscillator signal, producing sum and difference frequency components; one is selected as the IF.
Reference: Standard communication systems: receivers
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