| 摘要 |
The highly-stiffened, dual-axle antenna tracking pedestal improves tracking performance, reduces manufacturing and installation costs and increases safety during field assembly, maintenance and operation of the pedestal. The reinforced concrete counterweights affect the natural frequency of the pedestal system and reduce vibrational effects from wind loads during antenna slew. Reduction of the number of structural components and pouring concrete counterweights at the job site simplifies fabrication, as well as reducing shipping and handling costs. The use of a dual-axle mount provides antenna slewing without problems associated with conventional azimuth-elevation pedestal systems. The pedestal mount has a structure and drive system that is simple and inexpensive. The drive system has two orthogonal rotational axes, one oriented east-west and the other north-south. The two rotational degree-of-freedom arrangement allows smooth tracking over the entire sky.
|
