顾名思义，晶体管常用作混频器，可以输出混频信号，并且是许多电子通讯系统的基本元件。

As the name suggests, mixers produce output signals with mixed frequencies and are fundamental components of many electronic communications systems.

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在第二部分，我们将着眼于活性成分，如射频晶体管，混频器，调制器和放大器，用于下一代无线电台。

In Part 2, we will look at active components such as RF transistors, mixers, modulators, and amplifiers for next-generation radios.

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在第二部分，我们将着眼于活性成分，如射频晶体管，混频器，调制器和放大器，用于下一代无线电台。

In Part 2, we will look at active components such as RF transistors, mixers, modulators, and amplifiers for next-generation radios.

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