NDB码告警灯亮，监听器有打码声，转换板上D10灯不亮，则可以判断为（ ）电路故障。

相关题目

• Single GLS can serves all runway ends and in one airports.（
• The GBAS channel range is restricted to （ ） so that the chan
• The GLS System eliminates need for “critical areas ” required fo
• The GLS System eliminates need for “critical areas ” required fo
• Single GLS can serves all （ ）and in some cases multiple airp