Mobile jammers are very popular on the black market

The emergence of the Global Navigation Satellite System (GNSS), first designed by the US military in the 1960s, changed everything. In the mid-1990s, the emergence of this civilian technology was called the civilian technology name, known as the Global Positioning System. , So that the aircraft can navigate on the artificial satellite and route directly from point to point. GPS location and altitude data are also accurate enough to help them land. The Federal Aviation Administration (FAA) is implementing half of its NextGen program, which aims to enable flight by completely converting ground-based navigation aid mobile cell phone jammer devices (such as radio beacons) to a navigation system primarily piloted by aircraft satellites Safer and more efficient. Through this transition, the agency began to dismantle the VHF navigation station ten years ago. The United States is currently gradually establishing a minimum backup network of less than 600 ground stations.

For such an important resource, cell phone signals are extremely susceptible to interference. When cell phone jammer signals reach the ground, they are so weak that they can easily be overwhelmed by accidental or malicious interference. Humphries said that it is very easy to build a basic electronic warfare device to destroy these weak signals. “If the oscillator is detuned in a microwave oven, then your cell phone jammer can run for miles.” Illegal GPS jamming devices are widely available on the black market, some of which are sold to professional drivers who may wish to avoid being tracked at work member. Other GNSS systems, such as Russia’s GLONASS, China’s Beidou and Europe’s Galileo constellation, use slightly different frequencies, but they have similar vulnerabilities depending on who is testing or attacking. In China, this mysterious attack succeeded in “spoofing” ships equipped with GPS receivers to the tampering location, and it is believed that ships relying on Beidou were not affected. Similarly, GPS signals are often scrambled in the eastern Mediterranean, Norway and Finland, and the Galileo system is not the target of the same attack.