1. In superheterodyne receivers, the local oscillator is used to




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MCQ->In superheterodyne receivers, the local oscillator is used to....
MCQ->Match the following: List I (Oscillator) List II (Features) A.Wien Bridge1.RF oscillator, uses two inductors and one capacitorB.Colpitt's2.LC oscillator for radio frequencies uses three capacitances and one inductanceC.Hartley3.RC oscillator for audio frequenciesD.Clapp4.RF oscillator, uses two capacitances and one inductance

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MCQ->In a broadcast superheterodynes receiver having no RF amplifier, the loaded Q of the antenna coupling circuit is 100. If the intermediate frequency is 455 kHz. In receivers operating upto the limit of shortwave broadcasting the local oscillator often used is....
MCQ->A superheterodyne receiver is to operate in the frequency range 550 kHz - 1650 kHz, with the intermediate frequency of 450 kHz. Let denote the required capacitance ratio of the local oscillator and I denote the image frequency (in kHz) of the incoming signal. If the receiver is tuned to 700 kHz, then....
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