Q. A CW transmitter radiates

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Q. The commonly employed filter in SSB generation is

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Q. The storage capacity of a CD is

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Q. Which of the following pulse modulation is analog?

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Q. Pulse stuffing is used in

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Q. In a modulator it is found that the amplitude spectrum consists a component at fc, the carrier frequency and one component each at fc - fs and fc + fs where fs is the modulating signal frequency. Then the modulator used is

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Q. Frequency shift keying is used mostly in

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Q. Troposphere is the portion of atmosphere

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Q. Earth's curvature affects the effective height of antenna.

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Q. In PCM, the quantization noise depends on

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Q. How can the quantizing noise be reduced?

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Q. Audio systems use transverse recording.

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Q. In a CD player the laser uses

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Q. Leak type bias is used in a plate-modulated class C amplifier to

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Q. FM broadcast is done using

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Q. In MTI radar, clutter means

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Q. A sinusoidal carrier voltage, having frequency 1000 Hz is amplitude modulated by a sinusoidal voltage of frequency 15 kHz. The frequency of upper and lower sidebands will be

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Q. Identical telephone numbers in different parts of a country are distinguished by their

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Q. Consider the following statements as regards pulse repetition frequency

1. Pulse interval should be as large as possible so that a pulse returns before next pulse is transmitted
2. Greater the number of pulses reflected from a target, greater is the probability of distinguishing it from the noise

Which of the above are correct?

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Q. Which gives minimum probability of error?

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