| 摘要 |
PURPOSE:To improve the operability for minute adjustment of an angle of elevation by forming a supporting member of a parabolic antenna as L-shape so as to be bridged over the back side of said antenna and providing plural fitting holes to both wing sides along the lengthwise direction. CONSTITUTION:The supporting member 32 consists of a supporting frame 321 fixed to the parabolic antenna 31 and a nearly L-shaped mounting frame 322 fixed to said supporting frame 321 by screw. A reinforcing beam 36 is screwed to three parts, both ends and center of a pair of the fixed frames 321. Plural mounting holes are formed respectively to one wing piece 1A and other wing side 2A of the L-shaped mounting frame 322, and in mounting the frame to a supporting post 39, a pair of mounting holes suitable to obtain a desired angle of elevation is selected and the mounting frame 322 is fixed tentatively to mounting metallic fixtures 37, 38 by screws 40, 41. Then the angle of elevation is set to a desired value by operating a minute adjusting mechanism provided to the mounting metallic fixture 37. |
