Dubbed Symphony RangeVue, the system includes cloud-based software to track drones. For this system to work, all future drones will have to automatically send out a signal with their location information. This is the same ADS-B signal that most manned aircraft already broadcast. Towers made by Exelis will then pick up that signal, as well as information from radars and surveillance systems, and pass that along to the FAA, where it will be seen on a tablet or a computer complete with a map of the terrain below and information about the weather. With this information, the FAA would have access to a sort of drone atlas, ever changing in the sky just above the ground and well below.