As smartphones become more and more common, our lives are more and more inseparable from mobile phones. It is a habit to bring mobile phones with you when you go out. Tracking and positioning by girlfriends / boyfriends will not affect our lives at least, but if It is very troublesome to be followed by criminals.
The life of being monitored at all times is unbearable, especially on your own mobile phone, so how to prevent the mobile phone from being tracked by location. I often see such fragment in TV shows: The protagonist proactively shuts down the phone to prevent being tracked. In fact, if the battery of the phone is not pulled out at this time, your phone will still be tracked.
There are many methods to calculate the GPS position. Now the GPS network has high accuracy, which can be accurate to within ten meters or even a few meters; the position is calculated using Wi-Fi hotspots, and the user's indoor positioning is accurate; even if we do not send GPS coordinates, As long as the mobile phone and the signal tower communicate, other people can use the triangle positioning method to know your approximate location; even if you remove the SIM card, it will be positioned.
The simplest and most rude and effective way to prevent the mobile phone from being tracked is to remove the battery of the mobile phone, so that the mobile phone lacks energy supply and cannot send a signal to communicate with the outside world. We can also use other methods to avoid being tracked, such as virtual positioning, using mobile The built-in "travel function" locates the phone to "various locations" to confuse trackers. The recently popular jammers on the market are also a method to prevent GPS tracking. GPS jammers hide their position by shielding GPS signals to effectively prevent others from tracking. mini gps jammer is cheap and easy to carry, and they are very popular.