Title :
The SABC´s TV/radio satellite distribution system
Author_Institution :
South African Broadcasting Corp., Johannesburg, South Africa
Abstract :
During 1986, the South African Broadcasting Corporation (SABC) implemented a system for distributing its TVI program and various radio programs via a leased transponder on an Intelsat satellite to distant terrestrial transmitting stations for rebroadcasting purposes. The system and its performance are described. A brief description of the B-MAC (B version of the multiplexed analogue components system) coding format is included. Problems experienced during the first two years of operation and the solutions applied are discussed, as well as the overall successes of the system. Problems considered are: the potential existence of interference from terrestrial microwave links, rain attenuation, lightning damage to equipment, synchronization problems between B-MAC and asynchronous video signals, cross polarization effects, and satellite tracking/stationkeeping
Keywords :
radio broadcasting; radiowave propagation; satellite relay systems; television broadcasting; video signals; B-MAC; Intelsat; TV/radio satellite distribution system; TVI; asynchronous video signals; cross polarisation; interference; lightning damage; rain attenuation; rebroadcasting; satellite tracking/stationkeeping; terrestrial microwave links; terrestrial transmitting stations; transponder; Lightning; Microwave devices; Optical attenuators; Optical polarization; Radio broadcasting; Rain; Satellite broadcasting; TV broadcasting; TV interference; Transponders;
Conference_Titel :
Communications and Signal Processing, 1988. Proceedings., COMSIG 88. Southern African Conference on
Conference_Location :
Pretoria
Print_ISBN :
0-87942-709-4
DOI :
10.1109/COMSIG.1988.49301
