JEE Main & Advanced Physics Communication System / संचार तंत्र Question Bank Self Evaluation Test - Communication System

  • question_answer
    A super heterodyne receiver is designed to receive transmitted signals between 5 and\[10\text{ }MHz\]. The tuning range of the local oscillate for IF frequency \[600\text{ }kHz\] for high-side tuning would be      

    A)                    \[4.6\] to\[9.6\text{ }MHz\]

    B) \[5.6\] to \[10.6\text{ }MHz\]

    C) \[4.6\] to\[10.6\text{ }MHz\]

    D) \[5.6\] to \[9.6\text{ }MHz\]

    Correct Answer: B

    Solution :

    [b] For high-side tunning \[{{f}_{LO}}={{f}_{M}}+{{f}_{IF}},{{P}_{IF}}=0.6\,MHz\] \[{{f}_{LOL}}=5+0.6=5.6\,MHz\] \[{{f}_{LOU}}=10+0.6=10.6\,MHz\]


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