Q. Doppler spread is given by _______

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Q. The rule of thumb for antenna diversity states that for an antenna separation of 10 wavelengths or more, there is a considerable probability for the diversity signal to be substantially decorrelated from the primary signal.

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Q. Cellular systems employ ____ sectorization.

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Q. _____ offers fade resistance for slow-moving mobiles.

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Q. Which stage carries out diversity combining?

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Q. ______ combiner picks the diversity channel with maximum received signal strength.

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Q. The increase in demand for DSP resources due to the introduction of diversity can be controlled by _______

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Q. The physical location of the antennas may cause _____

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Q. Military applications resort to channelized architectures due to _____

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Q. Which of the following is not influenced by antenna characteristics?

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Q. Which of the following is not observed due to co-site interference?

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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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