Abstract: A cable television signal splitting apparatus transmits a cable television system downstream signal and a cable television system upstream signal. The cable television signal splitting apparatus includes a splitter, a bi-directional amplifying circuit and a splitting circuit. The bi-directional amplifying circuit is electrically connected to the splitter. The splitting circuit is electrically connected to the bi-directional amplifying circuit. The bi-directional amplifying circuit is arranged between the splitter and the splitting circuit. The splitter receives the cable television system downstream signal and transmits the cable television system downstream signal to the bi-directional amplifying circuit. The splitting circuit receives the cable television system upstream signal and transmits the cable television system upstream signal to the bi-directional amplifying circuit.

Abstract: A cable television apparatus is applied to an input coaxial cable and an output coaxial cable. The input coaxial cable and the output coaxial cable transmit a cable television signal. The cable television apparatus includes an input side, an output side, a directional coupler and a compensation antenna. The directional coupler includes a coupler input side, a coupler output side, a coupler matching side and a coupler coupling side. The compensation antenna is electrically connected to the coupler matching side of the directional coupler or the coupler coupling side of the directional coupler. The directional coupler utilizes the compensation antenna to wirelessly send out a coupler signal or receive a high frequency wireless cable television signal to proceed a signal compensation.

Abstract: A cable television system with printed-circuit-board-layout components receives a cable television signal. The cable television system includes a low pass filter apparatus. The low pass filter apparatus includes a printed circuit board, a plurality of low pass filters and at least one grounded metal wall. Each of the low pass filters includes a low-pass-side inductor and a low-pass-side capacitor. At least two of the low-pass-side inductors of the low pass filters are manufactured on the printed circuit board by a printed-circuit-board-layout technology to form at least two low-pass-side printed-circuit-board-layout inductors. The at least one grounded metal wall blocks a magnetic interference between the low-pass-side inductors of the low pass filters. The low pass filter apparatus filters out a signal having a frequency above 1 GHz.