Popular Science: NO ONE KNOWS THE BEST WAY TO STOP A DRONE…IS THERE A WAY TO KNOCK DRONES OUT OF THE SKY THAT’S JUST AS CHEAP AS THE DRONE ITSELF?
If it works in the field as well as it does in closed demonstrations, MESMER could hit at cheap drone through the very thing that makes them useful and affordable: the basic, open radio channels from the unregulated part of the electromagnetic spectrum.
http://www.popsci.com/how-to-stop-a-drone#page-4