Physics · Communication Systems
To effectively reject the image frequency in a superheterodyne receiver, which of the following techniques is commonly used?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Increasing the Local Oscillator (LO) power
- 2Using a frequency mixer without any filtering
- 3Applying a highly selective band-pass filter at the RF stage✓
- 4Using a narrow band-pass filter at the IF stage
Correct answer
Applying a highly selective band-pass filter at the RF stage
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