This car is equipped with a GPS locator. How can I know?

The locator installed in the car is also called GPS locator. GPS can be divided into ordinary GPS, dormant GPS and deep dormant GPS. Let's introduce these three kinds of GPS one by one:

1. Ordinary GPS will send the current GPS position to the server every ten seconds to dozens of seconds. Generally, this kind of GPS must be turned on, because it consumes a lot of power, but it is also easy to be found. Just find a relatively empty place about 20 meters where no one passes by, hold a signal detector, adjust the sensitivity below 9 10, and detect 900 and 9 10. Pause for 20 seconds every 20 cm to see if the signal can be detected. If the signals of these two frequency bands are found, the signal strength can be judged by moving. When the signal is full and the GPS is within 20 cm around the detector, it can be disassembled for inspection. Here, 900 and 9 10 respectively correspond to the frequencies generated when the GSM cards of China Mobile and China Unicom send GPS information, but they need to be adjusted according to the frequency points of local mobile and China Unicom base stations, and the fluctuation is within 6 or so.

2, light sleep GPS, that is, through manual setting, every once in a while, regularly send the GPS position to the outside world every day, in order to prevent it from being detected and save power (possibly batteries). This kind of GPS needs to lock the GSM card number in the GPS through special equipment, cooperate with shielding device and simulator, and then activate the equipment, that is, send short messages or make phone calls to the number continuously, so that the equipment is in the state of signal transmission and continuously transmit 900.

3, deep sleep GPS, this GPS has automatic on-off function. When it doesn't send a signal, it will shut itself down, and no tool can detect its information. This is also a kind of GPS that is hidden deeply and difficult to find. But since it is GPS, the purpose is to send wireless signals to the outside world. There is always a time when GPS is turned on to send signals. At this time, we still use professional testing equipment to scan continuously every few minutes. Once the GPS is turned on and sends a signal, it can be captured by the device for activation and detection. Generally, the transmission period of this GPS will not exceed 24 hours, and the transmission time is mostly at night. There is a simple reason. This GPS installation has nothing to do with the driver, just to track the car. Cars usually drive on the road during the day and park in the parking lot at night. At this time, the position of the car can be locked by the short message number sent by the deep sleep GPS, and the position of the car will continue to move.