Broadcasting of HDTV via satellite

HDTV contains about five times as much information as conventional TV. The relatively large bandwidth required for that cannot easily be accommodated in terrestrial transmissions. It is considered that digital wideband networks may be suitable for HDTV. For more widespread use in a not too distant future satellite broadcasting of HDTV is thought to be the most appropriate. As a preparation for WARC (World Administrative Radio Conference)-ORB(2), the CCIR Joint Interim Working Party 10-11/3 has studied technical parameters, suitable frequency bands and sharing aspects regarding broadcasting HDTV via satellite. A summary is presented of these studies covering the various aspects of systems providing a picture quality as close as possible to that of the studio signal. It is shown that such a system is feasible provided that frequencies can be allocated below about 23 GHz