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短波发射机,全天累计播音较多,节目倒换频繁,人为事故较多。本文介绍一种利用逻辑控制电路实现发射台节目自动调度以及应注意的问题。
Shortwave transmitters, broadcast more throughout the day, frequent program switching, man-made accidents more. This article introduces a logic control circuit to achieve launch station automatic scheduling and should pay attention to the issue.