It’s called the Anti-UAV Defense System (Auds) and it works to freeze drones out of the sky.

These units consist of electronic scanning air security radar, a stabilized electro-optic director with infrared, thermal, and daylight cameras, and a directional radio frequency inhibitor.

As the radio spectrum used by drones is fairly narrow, AUDS’ brief, focused broadcast won’t affect other aircraft or communication systems.

As the battlefield changes to adopt more un-piloted vehicles, efforts to develop the technology to take them down have increased ten-fold.

The AUDS made its public debut in May and has undergone testing in Europe and North America in different terrains ranging from open country to urban settings, Gizmag wrote.

According to the BBC, there are only a certain number of radio frequencies that drones use to communicate with home base. Once the drone gets close enough to the anti-drone system, it’s “game over” for the drone. Last year, the China Academy of Engineering Physics announced it was developing its own anti-drone laser cannon, which could be attached to vehicles, with military applications envisaged.

Just today (Oct. 9), two people operating a small drone near the Washington Monument in Washington, D.C., accidentally crashed their UAV on the back lawn of the White House.

Commercial drones have also been used in attempts to smuggle contraband goods, like cellphones and weapons, into prisons. In response, the FAA recently signed an agreement to test new technology which detects drones and identifies the location of their operator.

“There’s quite a lot of radio power on to the UAV - so much so that it can only hear our Auds signal”, he said.

In March 2015, the AUDS team took part in multi-supplier French government trials in Captieux, France, where its counter UAV system proved highly successful in detecting and neutralising a variety of fixed and rotary wing micro, compact and standard UAVs.