摘要
介绍了有线电视播出前端“射频自动循环监控、监录系统”的作用和制作方法。该系统可实现前端输入、输出信号同时监控,双层防范,从而有效遏制非法信号的干扰和攻击。该系统制作简单,资金投入少,安全可靠,适用于市县级有线播出前端信号的监控、监录。
This text has recommended in detail the function and manufacture method of the automatic circulation supervising and recording system of front frequency. It can realize control the front inputting, outputting signal at the same time, take precautions double layers. Thus the interference and attack in such illegal signals are prevented. This system is made simply, little fund inputting, safe and reliable. It can be used to the control and recording of front signal in many places.
出处
《中国有线电视》
2005年第19期1986-1987,共2页
China Digital Cable TV
