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开播及收播.
开播、收播,亦称作开台、收台,是指广播电台、电视台等廣播台全天开始或结束播出的行為。现今越来越多的电视台或广播电台实现了24小时播出,但即便是24小时播出,也有机会出现停机检修的情况。
形式
目前大多数非24小时播放的电视台或广播电台都会在早上开始全天的节目播出。在正式开播前,电视台一般都会播出检验图,可能配有音乐或者其它测试音,也可能完全静音;广播电台可能会播出测试音乐,也可能只发射空载波。正式开播时,电视台或广播电台一般会播出频道或者频率的宣传片、欢迎词、当日节目预告、国歌、台歌等(上述内容不一定全部播放,因电台或电视台而异)。
收播的情形与开播相反,广播电台或电视台在全天节目播出完毕之后,会播出频道或者频率的宣传片、收播提示、下次播出时的节目预告、国歌、台歌等(上述内容不一定全部播放,因电台或电视台而异),一些电视台还会安排一节简明新闻[1]或天气预报,之后电视台输出检验图(地面模拟电视可能直接由电视台或发射台切断信号),电台输出空载波或试机音乐。收播一般在深夜进行,但也有一些地区会在白天特定时段收播检修(如中国内地的电台及电视台早年会安排在周二下午进行检修)。
引用
- ^ ARD 26.04.1980 Tagesschau + Sendeschluß, [2021-05-04], (原始内容存档于2021-05-05) (中文(中国大陆))
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