変調方式 ASK：Amplitude Shift Keying 振幅変調 …
アンプ 1dB圧縮点：アンプの出入力特性で入力に対して出力が1dBダウンするポイント 高調波歪：非線形の特性により基本波の整数倍の周波数を持つ成分
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