Azimuth and elevation positioning solutions in satellite communication

Azimuth and elevation positioning solutions in satellite communication. The antennas standard commercial sizes are 6m, 7.5m, 9.4m, 11.1m, 12.1m, 13.2m 16.4m and 18.3m. These are all available with full motion 2 axis gear drive systems or in the smaller sizes with more economical ball screw jack drive systems or a combination optimized to the tracking requirements of each application. The larger antennas 12m form a precision Jack screw was used in elevation and a twin motor, torque biased, zero backlash gear drive system is used for azimuth however other configurations are also available. For this larger antenna a two motor gear drive system is proposed for elevation. Unprecedented 26 bit encoders are used for exceptional accuracy for pointing and tracking feedback together with a state of the art motor drive and control system. The larger antennas uses a precision ball screw elevation jack system and a full motion, twin torque biased gear driven azimuth drive. High-resolution encoders and the latest technology motor drive amplifiers are used to achieve highly accurate pointing control for the system.