Abstract: A positioner for an antenna intended to be placed in a given or restricted volume comprises: a first axis A? ensuring the movement of the antenna in azimuth, a third axis A? ensuring the movement of the antenna in elevation, said third axis A? being orthogonal and coplanar to the first axis A?, and a second axis of rotation A? or cross-elevation axis positioned so as to intersect said first axis A? and said third axis A? at one and the same virtual point O, said virtual point O of intersection of the three axes A?, A?, A? constituting the pivot point of the movements of said antenna mounted on the positioner.

Abstract: A positioner for an antenna intended to be placed in a given or restricted volume comprises: a first axis A? ensuring the movement of the antenna in azimuth, a third axis A? ensuring the movement of the antenna in elevation, said third axis A? being orthogonal and coplanar to the first axis A?, and a second axis of rotation A? or cross-elevation axis positioned so as to intersect said first axis A? and said third axis A? at one and the same virtual point O, said virtual point O of intersection of the three axes A?, A?, A? constituting the pivot point of the movements of said antenna mounted on the positioner.

Abstract: The method of identifying, in a memory space of the node, a virtual circuit of a network to which the cell belongs, on the basis of virtual path numbers VPI and virtual channel numbers VCI contained in the header of the cell. This method includesaddressing the memory space of the node on the basis of the virtual path number VPI contained in the header of the cell to identify a first context zone in this space indicating the range of virtual channels that can be used by the cell for this VPI,and addressing a second context zone on the basis of a virtual channel number VCI contained in the header of the cell and a basic address read in the first context zone to obtain the list of directions to be taken by the cell at the exit from the node, as well as the new header.