Question

(a) What is the significance of modulation index? (b) What are T.V. signals? How can they be received?

Answer 1

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Significance of modulation index. It is used to determine the strength and quality of transmitted signal. If the modulation index is small, then the amount of variation in the carrier amplitude is small.

Digital television (DTV) is the transmission of television signals, including the sound channel, using digital encoding, in contrast to the earlier television technology, analog television, in which the video and audio are carried by analog signals.

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