【摘 要】
：
输出功率和相互调制是电视差转机最重要的指标,它们是相互关联、相互制约的,本文就分别讨论测量其功率和互调的一些问题。一、功率测量中的几个问题 1.测量框图及计算公式电
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输出功率和相互调制是电视差转机最重要的指标,它们是相互关联、相互制约的,本文就分别讨论测量其功率和互调的一些问题。一、功率测量中的几个问题 1.测量框图及计算公式电视差转机的额定输出功率定义为同步顶功率,在部颁标准的测量方法中指出,图机的输出功率,是指在同步顶处一个射频周期的平均功率。用全黑电平调制的射频信号测量时,功率计读数与差转机图象输出标称(额定)功率的关系式如下
Output power and intermodulation are the most important indicators of TV transfer. They are interrelated and mutually restrained. In this paper, some problems of measuring power and intermodulation are separately discussed. A few issues in power measurement 1. Measurement diagram and calculation formula TV rated transfer machine rated output power is defined as synchronized top power, ministerial standard measurement methods pointed out that the picture output power, refers to the synchronization top The average power of a radio frequency cycle. When measured with an all black level RF signal, the relationship between the power meter reading and the nominal (nominal) power output of the poor turnaround machine is as follows
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