The Recommendation considering that it is desirable to establish a hypothetical reference circuit for active fixed-satellite systems to afford guidance to designers of equipment and systems for use in telephone and television networks; that only high-altitude satellites are being used or planned; that with such satellites it will become possible for most connections to be made with one satellite link, with occasional need for two links in tandem, particularly for television; that the oyera11 performance of each satellite link depends only to a small extenf on the great circle distance between the earth stations; that, to overcome fading, earth stations may operate in site diversity configurations, requiring terrestrial interconnection links between pairs of antennas; that satellite-to-satellite links are likely to be used in the fixed-satellite service.
ITU-R S.352-4 FRENCH-1982 history
1982ITU-R S.352-4 FRENCH-1982 Hypothetical reference circuit for systems using analogue transmission in the fixed-satellite service