英语词汇“高频头”的翻译、意思、用法、释义-英汉汉英双解词典

词汇	高频头
释义	高频头 gāo pín tóu又称“高频调谐器”。电视机中用来接收、选频、调谐与放大所需超高频信号，并变换成中频信号的部件。通常装成一个屏蔽的独立单元，故名。要求与天线馈线匹配良好，具有够宽的通频带，本振稳定，交叉调制小，噪声小，增益高，并具有自动增益控制。
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