| 摘要 |
An antenna mounting system has a pole secured at a first end to a base. A platform is connected to the pole via a tiltable joint which is rotationally fixed with respect to the pole. An antenna is secured to the platform, having a beam which is aligned to a desired elevation and azimuth orientation. Three flexible cables are connected at their first ends to the platform and at their second ends to a fixed reference plane mounting member which is rotationally fixed to the pole nearer its first end. The force of high winds will cause the pole to bend and, if unaccounted for, change the planar orientation of the platform and mispoint the beam. The platform, mounting member, and cables form a system of parallelograms whose sides remain parallel when the pole is deflected. Thus, the platform maintains its original angular orientation as the pole bends, preserving the desired orientation of the beam.
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