The facilities are already trying to prevent the problem with so-called GPS jammers. The system has not yet proven itself because it can interfere with the cell phone network or the alarm system. Finer fencing is also hardly an option because it is very costly. This puts the conventional method in the spotlight: a drone defense net that denies access to windows or covers certain yard areas. Contact us, gladly by phone, so that we can advise you on the specifications of such nets!