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1999年夏天,某ＭＭＤＳ解扰接收系统连续3天断续不解扰,严重时低频道(卫星接收节目)也不能正常收看。具体现象为:电视图像出现白色亮点,接着图像不解扰,白天大约每隔几分钟或更长时间断续出现一次,到了夜晚和早上,每隔几秒种就出现一次,并干扰其他卫星节目,使整个网络不能正常?
In the summer of 1999, a certain MMDS unscrambler receiving system intermittently and unscrambled for three consecutive days. In severe cases, the low-frequency channel (satellite receiving program) could not normally watch. Specific phenomena are: TV images appear bright white, followed by unscrambled images, appear intermittently about every few minutes or longer during the day, appear every few seconds at night and in the morning, and interfere with other satellite programs , So that the entire network can not be normal?