The Horn Antenna Edition is an extended version of the Free Edition without the limitations of the Free Edition and dedicated to the horn antenna synthesis and optimization. In general it is more less possible to compute and optimize the horn antenna and the feeding network together. Beside the Horn Antenna Synthesis Tool which uses the fast and compact Body Of Revolution (BOR) elements the user can setup an individual horn antenna by using the basic circular waveguide steps. The access to the antenna performance parameters like maximal gain, 3dB bandwidth, phase centre and more leads direct to a very easy setup of the optimization goals.