Source: /cirosantilli/modulation

= Modulation
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= Demodulation
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<Modulation> basically means encoding data on a <carrier wave>.

Image that we are at a point in history where <spark-gap transmitters> can send <Morse code>.

But now people want to send voice. How to do it?

It would not be practical without modulation: <Why can't you send voice without modulation?>

\Image[https://upload.wikimedia.org/wikipedia/commons/a/a4/Amfm3-en-de.gif]
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