The IF stage of a receiver employs
Answer: C
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A heterodyne frequency changer is called a
Answer: B
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Selectivity varies with receiving frequency, frequency is raised.
Answer: D
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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. The image frequency at 25 MHz will be
Answer: D
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A receiver having an RF amplifier and an IF of 450 kHz, has Q of the coils 65 and an incoming frequency of 1200 kHz. The image rejection of the receiver is
Answer: C
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When a superheterodyne receiver is tuned to 455 kHz, its local oscillator provides a mixer with the input at 1010 kHz. The image frequency is
Answer: C
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Noise generated in a resistor is also known as
Answer: C
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Which of the following circuit cannot be used to demodulate SSB?
Answer: A
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In a radio receiver, if the intermediate frequency is too high
Answer: A
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In a communication system, noise is most likely to affect the signal
Answer: B
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