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We all know FM in radio. But whati is AM?? Why do i always hear static ? What is it for? Who broadcast from there?

The difference is about how electromagnetic wave is modulated (how sound is encoded into waves) and the frequency range of these waves. AM waves have got lower frequency values such as walky-talkies and it is the real 'radio' frequency in fact. FM waves have got higher frequency values, which gives a better sound quality in result. And FM waves are in the same spectrum with TV waves. AM frequencies has been left by the music radio stations since a very long time. Still, i remember some local stations, such as 'polis radyosu' or some sort of temporary illegal radio stations, were broadcasting at the AM range a few years ago.
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