Commercial communication satellite systems in Canada

The object of this paper is to provide an overview of the commercial communications systems in Canada that make use of geostationary satellites. The system includes active communications repeater satellites in geostationary orbits, tracking telemetry and command facilities, a satellite control center, a satellite network operations center, and over 100 earth stations of several different types. Transportable earth stations are also part of the system for short-term message service to remote areas and television services for special events. This includes an overview of commercial satellite communications systems and a discussion of the forthcoming ANIK C and D. The paper briefly reviews the characteristics of the present system, outlines the major features of the system under construction, and indicates future plans.