The CCIR considering a) that conventional television systems bave been in use for a long period of time; b) that the characteristics of television receivers, essential for frequency planning, are well establisbed for the various PAL/SECAM/NTSC television systems; C) that those characteristics continue to be upgraded; d) that characteristics referred to in 4 c) have been the basis for planning parameters and methods used for the Second Session of the Regional Administrative Conference for the planning of VHF/UHF television broadcasting in the African Broadcasting Area and Neighbouring Countries (AFBC(2)); e) that conventional television systems will remain in use for a considerable period of time; f) that the IEC has responsibilities relating to television receiver standards and methods of measurement and definitions.
ITU-R BT.804 FRENCH-1992 history
1992ITU-R BT.804 FRENCH-1992 CHARACTERISTICS OF TV RECEIVERS ESSENTUL FOR FREQUENCY PLANNING WITH PAL/SECAM/NTSC TELEVISION SYSTEMS