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multiplexing and modulating technique.!!!

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zidanfadi

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Is modulation and then multiplexing is better technique in sending data or multiplexing and then modulation...............????
 

ninju

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That depends. Usually both are done together. eg, when you want to do frequency division multiplexing, you just up-convert different message signals into different frequency bands. In code division multiplexing, the multiplexing is done before the modulation.
 

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