The SABC´s TV/radio satellite distribution system

Author

Conradie, D.G.

Author_Institution

South African Broadcasting Corp., Johannesburg, South Africa

fYear

1988

fDate

32318

Firstpage

51

Lastpage

55

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications and Signal Processing, 1988. Proceedings., COMSIG 88. Southern African Conference on

Conference_Location

Pretoria

Print_ISBN

0-87942-709-4

Type

conf

DOI

10.1109/COMSIG.1988.49301

Filename

49301