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Homework Help: Explain what modulation and demodulation is

  1. May 4, 2008 #1
    Hey guys, was just wondering if you could explain what modulation and demodulation is and more importantly, why it needs to occure in things such as radio stations.

    Also, can you also explain how modulation and demodulation occur when fibre optics are involved?
  2. jcsd
  3. May 4, 2008 #2

    Andrew Mason

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