The RCJ1390LT-H is a vehicle mounted very high power jammer designed for blocking remote-controlled improvised explosive devices used by terrorists. It uses state-of-the-art technology for maximum performance and jamming the signals transmits to activate bombs. Each module of RCJ1390LT-H transmits unique noise signal which create “firewall” between the transmitter and its receiver. Jamming radius of RCJ1390LT-H depends on several conditions such as transmitter frequency and output power, distance to receiver and obstacles between. System modularity allows flexible usage in different applications. The system use broadband omnidirectional antennas for 360 degree protection according to Phantom Group.