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【fm與am的差別?】

FM和AM有什麼差別?為什麼MP3只有FM呢?

2 Answers

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  • 大師
    Lv 4
    1 decade ago
    Favorite Answer

    AM = amplitude modulation 調幅

    FM = frequency modulation 調頻

    AM是把資料或聲音的波以改變載波的振幅傳出去。

    FM是把資料或聲音的波以改變載波的頻率傳出去。

    MP3是時下流行的產物,而FM的流行廣播頻道比較多!所以囉

    Source(s): 知識+
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  • 1 decade ago

    FM=調頻am=調幅

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