Q. Which of the following is not a challenge posed by antenna?

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Q. Cost of production electronics is an exponential function of parts count, number of antennas, and related RF/IF paths.

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Q. Which of the following is not present in the conversion stages of super heterodyne receiver?

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Q. Which of the following is used in base station applications?

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Q. Direct conversion receiver is a heterodyne receiver.

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Q. Which of the following is a challenge for direct conversion receiver?

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Q. In which technique RF is amplified until it is hard-limited into a square wave?

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Q. When ____ of N zero crossings count becomes small, a signal is considered to be present.

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Q. Which of the following is not used to control interference at RF?

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Q. The ______ of out-of-band signal with bandpass characteristic of the receiver gives the interference in the receiver owing to out-of-band energy at the transmitter.

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Q. ____ separates uplink and downlink.

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Q. A _____filter establishes maximum and minimum possible level for processing.

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Q. Which of the following is a characteristic to be possessed by a roofing filter?

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Q. Active cancellation is the process of introducing transmitted signal in the _____ for subtraction from the input signal.

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Q. In active radar blanking, communication between RF stage and rest of the communication system is ___ while the control line is ____

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Q. The required active cancellation is equal to ____ between the maximum non distorting input signal and the radiation level at the antenna.

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Q. The number and characteristics of roofing filter are determined by modulation of the subscriber signal.

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Q. RF integrated circuits generally comprise of _____

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Q. RF MEMS gives _______ alternative to electronic switching circuits.

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Q. Which of these is not a technique used to induce sharp resonance in resonators?

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