GPS jammers prevent vehicle tracking devices from receiving signals

Except for the fact that GPS systems are easy to encrypt. A 20-watt satellite at a height of 20,000 feet may be submerged by a simple ground or vehicle-mounted transmitter of a few watts, which may affect GPS receivers within a radius of tens of kilometers. Not only will it interfere with the GPS signal recognized by the receiver and send the signal accurately through the signal loss alert, it will also trick the receiver to indicate the wrong location, speed, direction or altitude. As you can imagine, the gap between the importance of GPS in modern life and the vulnerability to interference is staggering. The cross-channel traffic between Dover and Calais is very heavy, and nearby GPS jammers may cause disaster. GPS signals are also used to synchronize mobile networks, and wrong signals can destroy entire parts of the communication infrastructure. Is this fear reasonable?

Previously, in Russia, the GPS signal exposed by Pokémon Go-Mode was abnormal. Hundreds of players were placed near the Kremlin in Moscow city center and Vnukovo Airport, 32 kilometers away. Signs that the Russians are testing gps blocker systems in the Kremlin may be a defensive measure designed to protect the navigation system from possible missiles launched by the Russian state headquarters. No wonder the Russians developed this kind of thing for defense purposes, but nowadays, every experienced craftsman can make GPS jammers, such as controlling self-driving cars. Or drones or existing or future autonomous machines navigating via GPS. Even large construction machinery uses GPS to accurately locate themselves. We believe that the military may interfere with large jammers in infrastructure throughout the region.

Devices that block or interfere with GPS signals are illegal, because so much communication today depends on satellite technology. Therefore, according to the investigation, GPS jammer Gary Bojczak (Gary Bojczak) hid in front of his employer and played a role in monitoring the surveillance communication operations at Newark Liberty International Airport. fine. The fine may be high, but in fact Bojczak was lucky that he was not sentenced to jail for his actions. The reason is that GPS jammers will not only prevent vehicle tracking devices from receiving signals, but also prevent air traffic controllers from obtaining important position information about them and the position of the aircraft in the sky or on the runway. After the FCC received a formal complaint from the Federal Aviation Administration (FAA), the investigation began. The complaint is that the Ground Augmentation System (GBAS) at Newark Liberty Airport has been damaged. Tracking systems are vital to supporting air traffic controllers by providing accurate navigation data for aircraft landing, take-off, and all other movements in or near the airport.