Q. CW Doppler radar is capable of giving accurate measurements of relative velocities.

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Q. In the stabilized reactance modulators AFC system

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Q. An antenna is 30 metre high. The frequency is 1 MHz. The radiation resistance is about

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Q. Which of the following codes is based on BCD format?

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Q. Which of the following terms is not applicable to Yagi-Uda array?

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Q. If transmission path, in PCM, is very long then

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Q. In a single tone AM the power of carrier is P and modulation index is m. The powers of each of the two side bands are

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Q. If F(ω) is Fourier transform of f(t), then the Fourier transform of f(t) cos ωct is

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Q. In a TV receiver the raster is normal but there is no sound and quality of picture is poor. The defective part is

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Q. Foster Seeley discriminator uses a

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Q. Which of the following statement about modulation is correct?

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Q. Sound wave travels as

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Q. FM signal can be generated by

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Q. A planar array radar uses a high gain planar array antenna.

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Q. The Shannon-Hartley law

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Q. In radar PRF depends on maximum range.

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Q. A frequency doubler has an FM signal input at 13 MHz with a deviation of 5 kHz. The output frequency of the carrier will be

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Q. If fh(t) is Hilbert transform of f(t), then Hilbert transform of fh(t) is

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Q. Maximum undistorted power output of a transmitter is obtained when its modulation is __________ percent.

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Q. Brownian motion is

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