What do you think of as an "invisibility gadget"? Meet the GPS signal jammer.
In this era of ubiquitous positioning, GPS has become deeply embedded in our daily lives: driving navigation, ride-sharing, express delivery, and even location-based check-ins on social media apps all rely on it. However, with this convenience comes privacy concerns. As more and more people worry about being "monitored at all times," " GPS signal jammers " have quietly entered the public eye, being hailed by some as "invisibility gadgets." But are they truly a panacea for privacy concerns? 1. How does GPS positioning work? GPS (Global Positioning System) uses multiple satellites to continuously transmit weak signals to Earth. A smartphone or car device receives data from at least four satellites to calculate its precise location. This entire process relies on stable and continuous radio waves. Simply put, the satellites are the "broadcast towers" and the device is the "receiver." As long as the signal is stable, positioning can be perf...