July 2013
Beginner
224 pages
5h 46m
English
Content preview from Introduction to SNG and ENG MicrowaveBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Automation in operation
On arriving at site, the vehicle can be readied for transmission. The required satellite is selected from a menu list on the control panel, and the GPS unit and the flux-gate compass feed the positional information of the uplink to the antenna control system. From this information, the control system can calculate the required antenna azimuth and elevation for the selected satellite.
Under control of the automated acquisition system, which is activated by a single button press, the antenna is raised from its lowered (park) position to a predetermined nominal elevation. It then rotates to the satellite’s azimuth, and elevates to the calculated elevation angle.
Some systems go one step further in sophistication, and use ...
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