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| aerodrome traffic frequency (在非管制机场中指定使用的无线电通信频率，用于确保与邻近空域具有无线电设备的飞机在公共频率上进行通话。ATF 信号通常为地面站的使用频率并由地面站发出呼叫信号，当无地面站时将指定一个公共频率,且呼叫信号为 Traffic Advisory (交通咨询)) | |||
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