What is angle and amplitude modulation?

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What is D-FF? What is the basic difference between Latches and Flip flops? What is a multiplexer? How can you convert an SR Flip-flop to a JK Flip-flop? How can you convert an JK Flip-flop to a D Flip-flop? What is Race-around problem? How can you rectify it? Which semiconductor device is used as a voltage regulator and why? Explain an ideal voltage source? Explain zener breakdown and avalanche breakdown? What are the different types of filters? What is the need of filtering ideal response of filters and actual response of filters? What is sampling theorem? What is impulse response? Explain the advantages and disadvantages of FIR filters compared to IIR counterparts. What is CMRR? Explain half-duplex and full-duplex communication? Which range of signals is used for terrestrial transmission? Why is there need for modulation? Which type of modulation is used in TV transmission? Why we use vestigial side band (VSB-C3F) transmission for picture? When transmitting digital signals is it necessary to transmit some harmonics in addition to fundamental frequency? For asynchronous transmission, is it necessary to supply some synchronizing pulses additionally or to supply or to supply start and stop bit? BPFSK is more efficient than BFSK in presence of noise. Why? What is meant by pre-emphasis and de-emphasis? Explain 3 dB cutoff frequency? Why is it 3 dB, not 1 dB? Explain ASCII, EBCDIC?

3 Answers   DRDO, Electronics,

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what is the diffrence between S7 200 & S7 300 plc

0 Answers   Amara Raja,

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examples of device driver.how mapping driver indepent user activity

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Describe the working of 3φ fully controlled bridge converter in the rectifying mode and inversion mode. And derive the expressions for average output voltage and rms output voltage?

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What happens when a voltmeter is connected in series with the circuit?

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When an RC driving point impedance function has zeros at s=-2 & s=-3,then admissible poles for the function would be? a)s=0;s=-6 b)s=0;s=-3 c)s=0;s=-1 d)s=-3;s=-4

3 Answers   BSNL, Jindal Steel and Power,

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What is the forbidden energy gap? How does it occur?

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What is the effect of temperature on the reverse current of a p-n junction?

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What is an instrumentation amplifier and the need for?

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what are the need of satellites in telecommunication. if satellite no means how can we communicate with others?

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How to test SS7

0 Answers   Mind Tree,

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