| 摘要 |
<p>PURPOSE:To provide the brancher for monitor reducing an inserting loss. CONSTITUTION:This brancher for monitor inputs the trunk line signal of a CATV from a trunk line signal input terminal 111 and outputs the trunk line signal from a trunk line signal output terminal 115 connected to this trunk line signal input terminal 111. On the transmission line of the trunk line signal between the trunk line signal input terminal 111 and the trunk line signal output terminal 115, coils 112 and 113 are connected parallelly to the input of a repeating amplifier or the like (the load of a cable transmission line) and defined as branched inputs, and branch signal for monitor is branched from a tap B of the coils 112 and 113. A matching resistor 114 is linked to this tap B, and an impedance observed from a branch output terminal 116 is matched with an impedance observed from the tap B.</p> |
