Can ATC see my drone?
Can ATC see my drone? Yes and no. The radar used by civil ATC isn't designed to pick up something as small as a drone, however in the vicinity of some airfields there are DDS (drone detection system) deployed that can see them.
What happens if you take a drone above 400 feet?
Ultimately, the 400-foot altitude limit was put in place for the sake of airspace safety. The airspace beyond 400 feet is large and the chances of running into another aircraft are astronomically low, but the potential consequence of a drone crashing into a manned aircraft can be disastrous.
Can airports see your drone?
Can airports detect drones? Typically, Air Traffic Control towers and most airports will not be able to see your drone on radar. Specially tuned drone radar systems can detect drones, but they are generally different from the radar systems used at airports.
Will the FAA know if I fly my drone over 400 feet?
For the most part, compliance with the 400-foot rule is a voluntary matter. There is no existing mechanism for the FAA to monitor if there are drone pilots, licensed or otherwise, who will fly above this altitude limit.