输出放大器类饮用水无线电推拉式操作。

Output Amplifier Potable Radios Class Push-pull Operation.

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同时，软件无线电为射频功率放大器的设计提供了新的技术途径。

At the same time, SDR provides new techniques and methods for the design of power amplifiers.

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前置放大器电子线路或装置，用来探测并加强无线电接收机所发出的微弱信号，从而使其达到更加有力的增幅程度。

An electronic circuit or device that detects and strengthens weak signals, as from a radio receiver, for subsequent, more powerful amplification stages.

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