What is the squawk code for a UAS lost link emergency?

The correct squawk code for a UAS (Unmanned Aircraft System) lost link emergency is 7600. This code is specifically assigned for situations involving a radio communications failure. In the case of a UAS losing its communication link with the ground control station, squawking 7600 alerts Air Traffic Control and other aircraft in the vicinity that the UAS is not able to communicate, which is crucial for safety and coordination.

Other codes serve different purposes: 7400 is typically reserved for not assigned or general use, 7700 signifies a general emergency, and 1200 is used for VFR (Visual Flight Rules) operations. Understanding these codes is vital for ensuring effective communication and safety protocols in airspace management.