ITU-T N.54-1988 标准详情
- 标准号:ITU-T N.54-1988
- 中文标题:调测期和准备期的定义和持续时间
- 英文标题:definition and duration of the line-up period and the preparatory period
- 标准类别:国际电信联盟标准
- 发布日期:1988-11-01
No definite duration is recommended by the CCITT for the preparatory period. This duration is determined by the broadcasting organizations, but a typical duration is 15 minutes. During this period, the tests to be made are also left to the iscretion
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