A general introduction to communications satellite technologies, describing the capabilities and limitations of current satellites. Addresses all important aspects of the subject, including traffic, multiple-access techniques, link budgets, the spacecraft bus, and the geostationary orbit. Chapters are self-contained for easy reference. Extensive use of figures and tables pack a maximum amount of information, graphs are accurate enough for direct application, and equations provided can be run on an engineering pocket calculator. This fast-access Handbook should prove a handy reference for the student, manager, or engineer involved with communications satellites.