A Network Control System for Television Distribution by Satellite

The Canadian Broadcasting Corp. (CBC) utilizes the Canadian Domestic Satellite System to distribute three television channels throughout Canada via ANIK-1, the world's first synchronous-orbit domestic satellite, and a network of 33 earth stations. A Network Control System has been developed to provide the CBC with centralized remote control over the routing of channels to specific areas of the country or the accessing of satellite channels by different transmitting stations. With dual identical control centers — in Toronto (English Network) and Montreal (French Network) — either control center is able to control any earth station in the network to feed regions or specific locations with the desired channel, to control the audio/video output feeds to given regions or communities at the beginning and end of the broadcast day (or to blank out commercial messages), and to control the origination point of the program for any given satellite channel by turning transmitters on and off.

Print ISSN

0361-4573

Published

1975-02

Content type

Information

DOI

10.5594/J13404