求翻译：发射电路系统整体方案如图1所示，系统主要由三大部分组成：(1)数字信号处理芯片DSP控制芯片AD9850产生频率为2MHz和400KHz的波形信号；(2)使用功率开关模块进行功率放大；(3)根据接收器前置放大器输入端的信号电平自动调节压控衰减器，直到前置放大器输入信号满足电平为止。是什么意思？

Launch systems solutions for the circuit shown in Figure 1, the system consists of three parts: (1) digital signal processing chip DSP control chip AD9850 generates a frequency of 2MHz and 400KHz waveform signal; (2) Use the power switch for power amplifier modules ; (3) pre-amplifier to the receive

firing circuit system overall program as shown in figure 1, the system mainly consists of three major components: ( 1) Digital signal processing chip DSP AD 9850 controller chip and 400 have a frequency is 2MHz KHz waveform signals; ( 2) using power switch power amplifier module receivers; ( 3) In a

Transmission circuit system overall plan as shown in Figure 1, the system mainly by three major part is composed: (1) digital signal processing chip DSP control chip AD9850 has the frequency is 2MHz and the 400KHz profile signal; The (2) use power switch module carries on the power enlargement; (3)

Launches circuit system overall programme as Figure 1 by as shown in, system main by three large part composition: (1) digital signal processing chip DSP control chip AD9850 produced frequency for 2MHz and 400KHz of waveform signal; (2) using power switch module for power zoom; (3) under received de

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