Hexagonal cage for the horn with dimensions 6500 mm(length) × 2400 mm(height) × 2600 mm(width). The horn is attached to a U-shaped support by the ring crossing its center of mass, for pivoting and vertical displacement, and to another structure connected to the end of the polarizer, on the opposite side of the horn mouth. The U-shaped support and the back structure are mounted on top of a cart that allows for longitudinal positioning of the horn.