why we call vestigial side band(VSB) as c3f?

0 Answers   CRPF,

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Tell me how many mosfet switches are there in dynamic ram?

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Explain how many mosfet switches are there in dynamic ram?

0 Answers  

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Hall effect can be used to measure

1 Answers  

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hi friends, i have applied for oces 2010. can u give me a brief idea about the entrance exam which is gng to be held on may30th.Is the exam of technical or it includes aptitude? i am from ece stream.pls mail me at navinmsl@gmail.com

1 Answers  

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How to identify how many states the ripple counter is having by looking at the figure as it can also have some invalid states?

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Why the degree of valve plugs and valve seat is slightly different I control valve trim design

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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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ripple factor of half bridge rectifier???

1 Answers   ISRO,

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What does ac voltage controller mean?

0 Answers  

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respected sir, I am Diptiranjan swain have already applied as IFFCO GET ONLINE FORM-2013.kindly,send me one set of previous year question paper.

0 Answers   IFFCO,

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What do you by interfacing in PC ?

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