Q. Which of the following is not a challenge to RF/IF conversion stage in military application?

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Q. ____ fixes the input power dynamic range such that there are no sinusoidal RF conversion artifacts in the output.

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Q. The Nyquist criterion states that the sampling frequency of a band limited analog waveform must be at least ______ component to properly reconstruct the signal.

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Q. The useful dynamic range applicable for antenna, RF/IF conversion, and ADC’s is given by the ratio of smallest processable signal to the smallest detectable signal.

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Q. Which of the following is the first step in establishing acceptable aliasing power?

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Q. Noise must be less than _____ of the ADC.

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Q. To avoid aliasing, the wideband ADC is ____ by anti-aliasing filters to suitably alter the _____ waveform.

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Q. The shape factor of an anti-aliasing filter is given by the ratio of the frequency at ___ dB attenuation point to the frequency at ___ dB point.

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Q. Which among the following filters has the slowest roll-off?

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Q. Which of the following expressions give the relation between power and quantization step size (q)?

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Q. Which of the following expressions give the SNR at the output of ADC?

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Q. In non-monotonic filters, attenuation increases with frequency.

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Q. Which of the following is untrue about Sigma-Delta ADC?

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Q. Quadrature sampling uses ____ to ____ the bandwidth available for a particular sampling rate.

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Q. ____, ____ and ____ must be properly matched for effective representation of input signal in quadrature sampling.

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Q. Which of the following is not a characteristic of IC implementation of quadrature sampling ADC?

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Q. In Nyquist sampling, the ____ frequency is ______to the duration of the observation interval.

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Q. Which of the following is not a characteristic of DAC?

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Q. The principle behind Sigma-Delta ADC is oversampling.

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Q. Which of the following is not a part of traditional RF subsystems?

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