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Some Analog Monochrome TV Systems question?

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muaythai2006

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I need help wif some questions...It would be nice if u guy can help me out...=D


1)Which modulation technique is used for modulating a TV signal to a carrier frequency? What is the total bandwidth allocated for a TV channel? Illustrate with a figure the spectrum of a modulated TV channel.

2)Describe the difference between DSB-SC, SSB-SC, and VSB-SC. Illustrate with spectrum plots in the frequency domain.

3)With amplitude modulation (e.g. DSB), one can either suppress the carrier or transmit the carrier (leading to DSB-SC and DSB-C), discuss the difference in demodulation for DSB-SC and DSB-C. What are the major advantage and disadvantages of each?


4)Draw block diagrams for modulation and demodulation using VSB-SC. And explain briefly the function of each block in the diagrams.
 

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