Amplitude modulation (AM) : The form of modulation.

调幅：调制的一种形式。

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The passive interference in receiving station of amplitude modulation (AM) broadcasting from UHVAC transmission lines is mainly caused by towers.

特高压输电线路对调幅广播台站的无源干扰主要是由垂直杆塔引起的。

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In frequently used methods, sine wave is used as carrier with amplitude modulation (am), frequency modulation (FM) and phase modulation (PM) implied.

常用的调制方式使用正弦波作为载波并对其进行幅度调制(AM)和角度调制即调频(FM)或调相(PM)。

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