| 摘要 |
PURPOSE:To branch both VHF and UHF signals without mutual interruption, by providing an unbalanced-balanced conversion circuit having characteristics of LPF and HPF, between an unbalanced input terminal and two unbalanced output terminals. CONSTITUTION:A TV VHF and UHF mixed signal is inputted to an input terminal 1 of unbalanced type. An LPF2 passes through only the VHF signal out of the inputted TV signal to the terminal 1 with a little loss and an HPF3 only the UHF signal. The output of the LPF2 is picked up to a balanced output terminal 6 via an unbalanced-balanced conversion circuit 4 having LPF characteristics. Further, the output of the HPF3 is picked up at a balanced output terminal 7 via an unbalanced-balanced conversion circuit 5 having the HPF characteristics. As a result, VHF signals can be picked up from the terminal 6 and UHF signals are from a terminal 7 without mutual interference respectively. |
