说明：  １．进一步熟悉高频电子线路仿真方法。 ２．理解集电极调幅电路的工作原理，熟悉工程分析法。 3．进一步熟悉调幅波中调幅系数的定义及其测量方法。 4．了解四个电压量对集电极调幅电路的影响。 5．了解输出波形失真的原因及消除办法。
(1. Be familiar with the simulation method of high frequency electronic circuit. 2. Understand the working principle of collector am circuit and be familiar with engineering analysis method. 3. further understand the definition of amplitude modulation coefficient and its measurement method in am wave. 4. Understand the influence of four voltage quantities on the collector am circuit. 5. Understand the causes of output waveform distortion and the elimination methods.)