| 摘要 |
PURPOSE:To adjust the angle of elevation of a circular plate by connecting an exclusive mast, a mounting base and the circular plate having a reflecting plate in front with a set of rod members crossed with each other and shifting one rod member in the lengthwise direction. CONSTITUTION:An antenna 11 formed as the circular plate is provided with the 1st supporting rod 14 one end of which is connected to a joint 13. The 2nd supporting rod 15 in crossing with the 1st supporting rod 14 is coupled to metallic fixtures 16, 16 of the antenna 11 and engaged with the 1st supporting rod 14 by a connecting member 17. The 1st and the 2nd supporting rods 14, 15 are fixed respectively with an antenna fitting exclusive mast 18 by the 1st and the 2nd position fixing members 19 and 19a. The 1st supporting rod 14 can be shifted in the lengthwise direction to the connecting member 17 of the 2nd supporting rod 15. Thus, the angle of elevation of the antenna 11 is changed easily. |
