| 摘要 |
PURPOSE:To enable to adjust the direction of an antenna while watching directly a picture of a TV receiving set by providing a distributor in an outdoor unit, and providing a branching filter and a switch that changes the output of an RF re-modulating circuit to an indoor unit. CONSTITUTION:When making adjustment in direction of a parabolic antenna 1, a connection switch 26 is turned on, and at the same time, a portable TR receiving set 28 is connected to the distributor 27. Consequently, the output signal of the RF remodulating circuit 19 is supplied to the TV receiving set 28 through the branching filter 25 and distributor 27. Accordingly, picture quality corresponding to adjustment of the antenna 1 is obtained in the picture of the receiving set 28. As the receiving set is near the antenna 1, the direction of the antenna 1 can be adjusted directly while watching the picture of the receiving set. After the completion of adjustment, the receiving set operates similar to an ordinary satellite broadcast receiving set when the receiving set 28 is taken off from the distributor 27 and the switch 26 is turned off. |
