Proposed Space Telecasting Standards

Of the various modes of broadcasting which are possible, it appears that telecasting has the greatest potential. Because of the nature of the signals, it is also the most difficult. In space telecasting two lines of approach are open. One method is to design a system around the special capabilities and limitations imposed by space satellite operation and technique. The second method is to adjust the space system until it meets the requirements of conventional terrestrial telecasting. For this study it is assumed that the space system will be operated as an adjunct to the conventional system, that it must provide the same quality of service as is now available, and that conventional receivers are used. The remainder of this paper is devoted to examination of the effects of these assumptions, and to the establishment of proposed standards which are consistent with them.