Patent ID: 6864855

Claim:
A dish antenna rotation apparatus comprising: a dish bracket adapted to be fixed to a rear surface of a dish antenna, said dish bracket including a planar plate having opposing major surfaces which, when said dish bracket is fixed to the rear surface of said dish antenna, lie perpendicular to a polarity axis, said planar plate having a plurality of arcuate slots formed therein, being spaced from each other on an imaginary circle drawn about said polarity axis on said planar plate; an adapter plate disposed to contact with one of said major surfaces of said planar plate facing said dish antenna and arranged such that said dish bracket can be rotated about said polarity axis relative to said adapter plate, said adapter plate being provided with a plurality engagement portions in alignment with said respective arcuate slots in said planar plate; an elevation bracket disposed on the other of said opposing major surfaces of said planar plate facing away from said dish antenna, including a pair of parallel, spaced-apart wings extending perpendicular to said planar plate, and a connecting member formed integral with said pair of wings, said connecting member extending in parallel with said wings, said elevation bracket being rotatable about an elevation adjustment axis extending between said wings and perpendicular to said wings; said elevation bracket including tabs equal in number to said arcuate slots in said planar plate, said tabs being in contact with said planar plate and being provided with holes in alignment with said arcuate slots; and a plurality of securing members extending through said holes in said tabs and said arcuate slots in alignment with said holes and engaging with said engagement portions of said adapter plate to thereby secure said elevation and dish brackets to said adapter plate.