Last Updated：2025/11/20
Sentence
技師は、局部発振周波数と受信信号を混合して受信信号を一定の中間周波数に変換することで選択度を向上させる受信機の仕組みを説明した。
Quizzes for review
The engineer explained how a superheterodyne receiver improves selectivity by converting incoming radio frequencies to a fixed intermediate frequency.
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The engineer explained how a superheterodyne receiver improves selectivity by converting incoming radio frequencies to a fixed intermediate frequency.
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