When encountering emergencies or major emergencies involving terrorism, counter-terrorism, and EOD, public security special police or special service personnel generally dispatch communication jamming vehicles to the scene as an important means of technical support. What kinds of signals are cars generally used to interfere with?

Obviously, the function of the communication jamming vehicle is to interfere with various wireless communication signals. These signals transmitted by wireless communication are divided according to the operating frequency parameters and include all common communication frequency bands from 20MHz to 6000MHz. Signals.

If the equipment types of the target signal interfered by the communication jamming vehicle are divided, it includes at least: various types of remote controls, unmanned vehicles, point-to-point communication walkie-talkies, central radio-style walkie-talkies, mobile phones of various standards, cordless Telephone, wireless monitoring, satellite phone, GPS navigation of various standards, positioning equipment, various types of WiFi, Bluetooth devices, etc.

If the communication jamming vehicle has all the jamming modules turned on, it can interfere with the common drones on the market, and can effectively drive away or make forced landings for the drones. It can directly interfere with the UAV's navigation signal, wireless image transmission or flight control signals.

When the special police use a communication jamming vehicle to seal and control a target site, they can choose to jam different wireless signal types according to different tasks. It can interfere with all signals, or only interfere with some selected signal types. For example, it only interferes with the mobile phone signal, but at the same time retains the interference of the walkie-talkie. In other words, even if it is aimed at the interference of the walkie-talkie, it reserves a communication window for the police walkie-talkie frequency band of its own side, so as not to affect the police's own internal communication.