搜索 - 科创

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顺便一提，无论是8901A还是FAM均没有频率选择性，也就是说输入的载波只能有一个，调制分析仪通常不像接收机那样可以指定监听任意频率（某些调制分析仪带有选频接收功能）。

针对有源测试用途进行了专门设计，与针对无源测试用途的网络分析型射频万用表KC901H相比，KC903侧重于输出的可调范围，并且具备计数器、功率计和宽带电平表（KC901H只具备选频电平表），内置模拟调制器和调制分析仪

I.简介本次拆解的是一台简单但设计巧妙且高质量的设备，它是HP 11715A，在1970年代末随着8901A调制分析仪一起推出。

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