Anti-drone system – frequency jamming
The Drone signal jammer takes the same approach as a number of drone-jamming systems that fire radio waves into the distance to confuse the aircraft’s control channels, such as the shoulder-mounted Battelle DroneDefender and the larger Anti-UAV Defence System.
Ukraine has complained that its U.S.-supplied drones fall prey to Russian jamming capabilities, provided to Russian-backed separatists in Ukraine’s east. However, the models in use there are analog and more susceptible to older jamming methods.
If you need a method that’s even more subtle than physical interception, then frequency jamming may be what you need, and the Anti-UAV Defense System (AUDS) is one such solution. It scans the skies for drones and jams their control signals using its own high-powered radio signal.
Drone gun jams GPS and ISM radio frequencies that control drones. This electromagnetic field gun can safely bring drones down to the ground. However, it’s not commercially available yet. Basically a GPS signal jammer is nothing more than a very powerful radio transmitter that blasts electromagnetic noise at frequencies that the target receivers operate at, and at a power level high enough to drown out any effective communication. This works to disrupt machines communicating with each other the same way it disrupts voice comms.
The only way you might be able to get around the law with this is to figure out what frequencies the drone’s control signals operate at and look up the FCC regulations on legal power limits at that frequency (buy any applicable private operator permits if necessary) and make a transmitting antenna that doesn’t exceed that, then get it close enough to the target drone to be effective while transmitting some kind of signal that you could legitimately claim is innocent communication so that your lawyer can say it was interference and not intentional jamming once you’ve been arrested for your very expensive hobby.
The device works by jamming communications between a drone and its controller. It also has the capability of tracking the user. Most non-commercial drones are controlled using WiFi, and WiFi operates on frequencies (2.4 GHz & 5 GHz).
One of the best devices of this type available –Perfectjammer drone jammer – locates a drone in a 2-km range, jams its operation without breaking it and safely brings it down. It works in the frequency range from 2.4 to 5.8 GHz. It’s used not only in the highly protected public places like police headquarters, airports and military complexes but also by common clients who want to protect their privacy. The second example of an effective jammer is powerful Perfectjammer drone jammer EO-01 that locates a drone in a 5-km range and brings it down allowing for preview of the action on its screen. Similarly to the model described above, it guards privacy and safety of airport, governmental, military or even foreign services buildings and is also available to private clients.