Patent ID: 7113144

Claim:
An orientation adjusting apparatus comprising: a mast; a support base plate set disposed rotatably on and above said mast and rotatable relative to said mast about a first vertical axis; an azimuth bracket disposed rotatably on and above said support base plate set and rotatable relative to said support base plate set about a second vertical axis; an azimuth angle fine tuning unit including a first stud, a first positioning element connected rotatably to said first stud such that relative axial movement between said first positioning element and said first nut is prevented, said first stud engaging said first stud, and two vertical first pivot screw units, one of said first pivot screw units connecting said first positioning element rotatably to said azimuth bracket, the other of said first pivot screw units connecting said first nut rotatably to said support base plate set so that rotation of said first stud within said first nut will cause horizontal movement of said first positioning element relative to said first nut, thereby resulting in rotation of said azimuth bracket relative to said support base plate set about said second vertical axis; an elevation fine tune bracket disposed rotatably on and above said azimuth bracket; an elevation bracket disposed rotatably on and above said elevation fine tune bracket such that said elevation bracket is rotatable relative to said elevation fine tune bracket about a first horizontal axis, said elevation fine tune bracket being disposed rotatably on and above said azimuth bracket and rotatable relative to said azimuth bracket about a second horizontal axis; and an elevation angle fine tuning unit including a second stud, a second positioning element connected rotatably to second stud such that relative axial movement between said second positioning element and said second nut is prevented, said second stud engaging said second stud, and two horizontal second pivot screw units connecting said second nut and said second positioning element respectively and rotatably to said azimuth bracket and said elevation fine tune bracket so that rotation of said second stud within said second nut will cause movement of said second positioning element relative to said second nut, thereby resulting in rotation of said elevation fine tune bracket relative to said azimuth bracket about said second horizontal axis.