目前,很多家庭已经拥有两台或两台以上电视机,有的家庭还配有电脑,然而客厅里的有线电视插座只有一个接口。为了能在不同房间进行收看,只有经广电管理部门批准,才能把电视信号用分配器和电缆连接到多台电视机,牵一根明线又影响美观,装暗线又十分不便。“如果将有线电视信号用本文介绍的射频信号发射器转发出去,就可供方圆15m 左右的(家庭居 At present, many families already own two or more TVs, and some have computers. However, there is only one interface for the cable TV in the living room. In order to be able to watch in different rooms, only approved by the administrative department of radio and television, can the TV signal with a splitter and cable connected to multiple TV sets, drawing a bright line and affect the appearance, install the dark line and very inconvenient. ”If the cable signal is transmitted using the RF signal transmitter described in this article, it can be for a radius of about 15m