China has installed equipment on two fortified outposts on the Spratly Islands capable of jamming communications and radar systems, which U.S. officials say signifies a stepped-up militarization of the South China Sea. “China has deployed military wifi jammer equipment to its Spratly Island outposts,” a Department of Defense official said.
The reasons for the move can be traced back to 2016. That year, there was a very serious cheating in the college entrance examination, which was leaked on the Internet and spread crazily.In addition to the blackout, about 2,000 exam centers across the country have metal detectors, surveillance cameras and cellphone jammers. It is estimated that more than 700,000 students took the exam.
The officials said the equipment being used was developed by the Russian military and is very sophisticated, proving effective even against some encrypted signals and anti-jamming receivers. The drones impacted so far are smaller surveillance aircraft, as opposed to the larger Predators and Reapers that often operate in combat environments and can be armed.
The renewed interest in jamming within federal facilities follows an announcement by Deputy Attorney General Rod Rosenstein, who told a national meeting of corrections officials that federal prisons would start testing the technology anew.GPS jammers are usually small devices that plug into a vehicle’s lighter port and emit radio signals that overpower or drown out much weaker signals such as GPS or others. Although GPS jammers are illegal in the US, they are easily available online and are becoming more and more common as the use of fleet management tracking systems increases. These devices may seem relatively harmless at first glance, but their potential to cause harm is significant.