SATELLITE ANTENNA BASE FOR MULTIPLE-SATELLITE TV BRODCAST RECEPTION

摘要

P frame of the antenna in order to direct tv broadcast satellites characterized by a mechanism making it possible, by homothety, the beam of the antenna to describe a cone which is oblique with its apex at the location of the installation, to an oblique axis vertical in this place passing through the center of the earth and for steering the geostationary orbit of the satellites; for this purpose, the frame possesses an axis which is adjusted vertically on which are formed two fixed points, one being at the top of the cone and the other a point m, an axis passing through m and which can be inclined in the meridian plane of the angle complementary to that of the latitude of the place of installation and around which an arm 3 rotates, describing a circle c which is centered in m, in a plane parallel to the plane of the geostationary orbit, by installing the bundle of the antenna according to the straight line ab this beam describes the cone of the target orbit. / p