Q. As compared to tuned radio frequency receivers which of the following is the advantage of using superheterodyne receivers?

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Q. The selectivity of a radio receiver is

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Q. If the intermediate frequency of a superheterodyne receiver falls within the tuning range of the receiver

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Q. EM 84 tube is used in radio receivers as

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Q. Which of the following statement about receivers is false?

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Q. Modulated carrier power in FM

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Q. FM receivers using the standard 88 to 108 MHz band use IF of

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Q. Most of the amplification of the received signal is obtained in a superheterodyne receiver from the

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Q. The problem associated with tuned-radio frequency receiver is

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Q. Which of the following noise becomes of great importance at high frequencies?

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Q. Superheterodyne receiver can be used in

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Q. Which of the following statement about the advantage of phase discriminator over the slope detector is false?

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Q. Fidelity of a receiver represents

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Q. Which of the following produces upper and lower side frequencies?

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Q. The passband of the tuned circuits of a radio receiver should be equal to

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Q. In a receiver, at higher frequencies

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Q. Which of the following circuit cannot be used to demodulate SSB?

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Q. High IF in a superheat receiver

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Q. The typical squelch circuit

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Q. A communication channel with additive white Gaussian noise, has a bandwidth of 4 kHz and an SNR of 15. Its channel capacity is

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