GPS jammers were originally designed by the government to hide the location of combat vehicles during high-risk missions. Essentially, a GPS jammer is a small device that allows you to hide your whereabouts from GPS tracking devices that monitor your location and movement. GPS jammers send radio signals at the same frequency as your GPS device. Due to interference, the GPS tracker cannot determine the location of your vehicle.
A typical GPS jammer is modest-it is a standalone device that can be plugged into a cigarette lighter or similar auxiliary power source. It sends interfering signals (1575.42 MHz) at a distance of up to 10 meters, usually near GPS equipment. After the GPS jammer is turned on, it will operate in less than 20 seconds. These devices can meet a variety of needs-Wi-Fi and Bluetooth® connectivity, physical shields, remote controls, and options for use with spy cameras and drones.
They are cheap, easy to hide, and provide instant protection-GPS jammers seem to be a breeze. However, their use is prohibited by law and may actually be dangerous.