| http://www.w3.org/ns/prov#value | - Further, the platform is driven by a gear arrangement which must be affixed to the platform itself thereby further precluding positioning of the antenna nodal point at the center of the axis of rotation.Another positioning device useable for positioning an antenna or other bore-cited device in azimuth and elevation is disclosed in U.S. Pat. No. 3,215,391.
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