Why does an AM radio channel require any bandwidth at all? Why can’t it just transmit on a single, precise frequency?

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Why does an AM radio channel require any bandwidth at all? Why can’t it just transmit on a single, precise frequency?

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Anonymous 0 Comments

If you transmitted a CW (continuous wave) sine wave it would be a single precise frequency. But as you start modulating it, you are deforming the sine wave and that introduces side band frequencies.

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