What does the brevity term HOLLOW indicate for VDL operations?

The term HOLLOW in the context of VDL (Video Data Link) operations specifically indicates a situation where there is a loss of the video downlink. When operators use HOLLOW as a brevity term, they are communicating that the video feed from the unmanned aerial vehicle (UAV) is currently unavailable or has been interrupted. This is critical information for operators as it affects situational awareness and the ability to carry out missions effectively. Understanding this term is essential for maintaining efficient communication and ensuring that all team members are aware of the UAV's capabilities and limitations during operations. The other options do not accurately reflect the meaning of the term HOLLOW.