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GATE ECE 1998 | Question 2.17

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The image channel selectivity of superheterodyne receiver depends upon

  1. $\text{IF}$ amplifiers only
  2. $\text{RF}$ and $\text{IF}$ amplifiers only
  3. Preselector, $\text{RF}$ and $\text{IF}$ amplifiers
  4. Preselector, and $\text{RF}$ amplifiers only

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