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What is the difference between FM and AM?

I know these are different radio settings, but I don't know what the difference is or what they mean.

asked by thomas (30)

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Tags:  comparison  difference  technology

answers

Frequency modulation vs. amplitude modulation: Different technologies to broadcast radio waves. They operate on different frequency spectrums, which is why your radio needs a switch.

7 votes

The FM means modulated frequencies, which provide the possibility to diffuse in sterio. Also a FM station use higher frequencies than an AM one, that is why you can reach a lot more people with it.

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posted by Bo99 (389)
5 votes

AM (amplitude modulation) carriers alter in amplitude to mimic the audio being sent. FM (frequency modulation) carriers alter in frequency to mimic the audio being sent.

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posted by Rajesh (321)
5 votes

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