本论文主要围绕提高广播设备的可靠性是否需要冗长系统的问题进行论述。论文的基本指导思想是尽量避免广播设备故障而造成的停播现象。如果出现停播也要尽快修复。也就是说,如果一年出现一次停播,修复时间要一两天,就很不理想,若一个月出 This thesis mainly discusses the issue of whether the reliability of broadcast equipment needs a long system. The basic guiding principle of the dissertation is to avoid the phenomenon of stop-broadcast caused by the failure of broadcasting equipment. If there is a stop-off should be repaired as soon as possible. In other words, if there is a stop broadcast once a year, the repair time to a day or two, it is not ideal, if a month