| 摘要 |
PURPOSE: A broadcasting signal receiving apparatus is provided to prevent breakdown of a television(TV) or a VTR(Video Tape Recorder) due to thunderbolt or abnormal surge induced from an antenna. CONSTITUTION: In a filter unit(21), a capacitor(C1) and a spark gap(SP) are connected with each other in parallel. When inputting a broadcasting signal such as TV signal, the inputted signal is outputted by coupling and when thunderbolt is induced, the thunderbolt is outputted through the spark gap(SP). A varistor(22) grounds the thunderbolt outputted from the filter unit(21) and blocks the thunderbolt in order not to be inputted it into a broadcasting receiving apparatus such as TV. Capacitors(22,23) insulate between the antenna and the TV receiver and output the broadcasting signal received from the antenna to the TV receiver. |
