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What is the need for modulation?
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Answer Posted / rahul kumar
DEFINITION-
modulation is the process by which some characteristics of a carrier wave is varied in accordance with the instantaneous value of a modulating signal or message signal
NEED OF MODULATION-
1.Practical antenna length
2.operating range
3.wire communication
4.multiplexing
5.to over come equipment limitation
6. narrow anding
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