| 摘要 |
PURPOSE:To simplify the installation to a standstill satellite, by scaling the angle of elevation of antenna to the moving part of the antenna. CONSTITUTION:The antenna 3 is provided to the stem 4 freely turnably toward up and down direction. The stem 4 of an arc type fixed plate 6 is provided with a groove to be fastened to the stem 4 with a screw 7. The fixed plate 6 moves in interlocking with the antenna 3. The fixed plate 6 has a scale on which angles corresponding to the angle of elevation of the antenna 3 are given. Since the name of district corresponding to the angle of elevation to a satellite is known in advance, it is more convenient to have the district name also. |
