This standard specifies methods for measuring the electrical performance parameters of the main forward television signals of front-end equipment in cable distribution systems for television and sound signals. This standard is applicable to the measurement of electrical performance parameters of forward television signals of front-end equipment in cable distribution systems.
SJ/T 10657-1995 history
1995SJ/T 10657-1995 Cabled distribution systems for television and signals Methods of measurement on head end equipments