ATI Courses Satellite Communications Systems Engineering course sampler. This three-day course is designed for satellite communications engineers, spacecraft engineers, and managers who want to obtain an understanding of the "big picture" of satellite communications. Each topic is illustrated by detailed worked numerical examples, using published data for actual satellite communications systems. The course is technically oriented and includes mathematical derivations of the fundamental equations. It will enable the participants to perform their own satellite link budget calculations. The course will especially appeal to those whose objective is to develop quantitative computational skills in addition to obtaining a qualitative familiarity with the basic concepts.