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4002型话音合成器输出一个清晰的信号(在超高频段优于140db/HZ、136db/HZ),开关时间20毫秒。该仪器装有30个面板调整装置,当要求超范围参数时就显示错误消息,它用一个按键动作把RF输出电平由dBm转变为dBμ或μV,它的控制处理器存贮有
The Model 4002 voice synthesizer outputs a clear signal (better than 140db / HZ, 136db / HZ in the ultra-high frequency range) with a switching time of 20 milliseconds. The instrument has 30 panel adjustment devices that display an error message when an out of range parameter is required. It uses a pushbutton action to convert the RF output level from dBm to dBμ or μV, and its control processor stores