Alignment control device
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United States of America Patent
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Dec 28, 1999
Issued Date -
N/A
app pub date -
Sep 24, 1993
filing date -
Apr 19, 1991
priority date (Note) -
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status (Latency Note)
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Abstract
A tracking device comprises a cam-driven actuator arm by which the declination of an earth station dish is caused to vertically oscillate with a sidereal day cycle. In a second embodiment, the tracker comprises a constant velocity joint interposed between the satellite dish and the elevation frame of the antenna mounting structure. The rotation of the constant velocity joint over a sidereal day cycle will result in tracking of the figure eight path.
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