Source: cirosantilli/modulation
= Modulation
{title2=1920s}
{wiki}
= 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]
{title=<AM> vs <FM>}