 For these antennas the radials slope off at an angle and are also called a "skirt".Similar radiating wires can be placed on the top of antennas (instead of at the base) that serve an almost identical electrical function, but in that case the structure of radial wires at the top end of the antenna is called a "capacitance hat" or "top loading".When well designed, the ends of the wires in the ground system carry extremely high voltages.