According to Japanese sources, familiar with the internal affairs of the Ministry of Internal Affairs and Security, the signal interception equipment was reported to be able to monitor and intercept "drone" control signals. However, there are currently no regulations on GPS jammer, and there seem to be many very small jammers available, just plug them into a cigar socket on your car and use them. It seems extremely simple to use. When the jammer is running, the device cannot receive the GPS signal, so encryption does not help.
The vehicle GPS signal jammer is a third-generation green GPS signal interception device series, which only shields the location of the terminal, and does not interfere with any negative effects of the surrounding electronic communication equipment and the transportation of the terminal. This unit cannot use external GPS within the entire range of GPS interference shielding, covering all terminals with various GPS positioning signals within the shielding distance of 2-50 meters (may depend on satellite signal strength). As with positioning interrupts, all terminals use a single output.
Strict jammers When inspecting and installing, radio jammers are small in size, high in power, light in weight, and large in coverage. Some portable jammers are easy to carry. Effective preventive measures for mobile / vehicle GPS satellite positioning systems! Strictly test the technical indicators of the National Radio and Television Product Quality Supervision and Inspection Center, and meet the acceptable environmental electromagnetic radiation intensity classification standards.