有线电视信号“漏斗”故障成因及对策
The cause and countermeaure of CATV
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摘要: 在对有线电视维修过程中有时会出现某一频道信号严重凹陷的现象 (称之为“漏斗现象”) ,从而造成这一频道信号在这一区域无法收看 ,对此现象的形成原因进行客观分析 ,提出施工过程中应采取的具体对策Abstract: In servicing the CATV,the sudden sunken signals(or funnels)accidenlty appear in some channels.And the programs in this channel cannot be received.This paper analyses this phenomenon and its cause objectively and raises some countermeasures in the CATV installation.
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