电离辐射和电磁辐射有什么不同？对人是否有危害？ - 知乎
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然后是无线电波（Radio waves），也称为射频波（RF - Radio frequency）。波长范围1毫米至1千米，频率范围 300kHz 至 300GHz。图中可见其相对较低频率段包括无线电通讯常用的调幅（AM）以及调频（FM）频率范围。
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