功率放大器可以实现交流信号的准确跟踪和放大，输出频率范围可达1000赫兹。

And the power amplifier can realize accurately tracking and amplification for ac signals with frequency range up to 1000hz.

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同时也提出了热跟踪后本振频率跟踪误差项。分析前者，可以决定热跟踪电路应予修正的频率范围，而后者则是跟踪本振最终的误差。

The former determines the frequency range which should be revised by the hot tracking circuit, while the later is the final frequency error of the local oscillator.

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同时也提出了热跟踪后本振频率跟踪误差项。分析前者，可以决定热跟踪电路应予修正的频率范围，而后者则是跟踪本振最终的误差。

The former determines the frequency range which should be revised by the hot tracking circuit, while the later is the final frequency error of the local oscillator.

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