car GPS type

car GPS type


It will send the current GPS position to the server every ten to several tens of seconds. This kind of GPS generally has to be powered, because the power consumption is relatively large, but it is also the easiest to find. Just look for a relatively empty space, no one around 20 meters. In the passing place, with the handheld signal detector, the sensitivity is adjusted to below 910, and the two frequency bands of 900 up and down and 910 up and down are detected. From the inside to the outside of the car, every 20 cm interval, pause for 20 seconds to see if the signal can be detected. If the signals of these two frequency bands are found, then the signal strength is judged by moving. When the signal is full, the GPS is within the range of 20 cm around the detector, and then the disassembly search can be performed. Here, 900 and 910 respectively correspond to the frequency generated by the mobile and Unicom GSM cards when transmitting GPS information, but need to be adjusted according to the local mobile and Unicom base station frequency points, and the up and down floating is about 6 or less.



There is also a light sleep GPS


That is, through artificial setting, the GPS position is sent out every fixed time and fixed time every day. The goal is to prevent being detected and save energy (may be battery). This type of GPS should be equipped with a special device, with a shield, The mold machine locks the GSM card number in the GPS, and then activates through the device, that is, continuously sends a text message or calls to the number, so that the device is in a signal transmission state, continuously transmits a frequency band signal of 900~910, and then holds the handheld signal. The detector can be found by detecting it in the No. 1 method.



The most terrible deep sleep GPS


This type of GPS has an automatic on/off function. When it does not send a signal, it will shut itself down. No tool can detect its information. This is also the deepest hidden GPS, which is difficult to find. However, since it is GPS, the purpose is to transmit wireless signals. When there is always a signal to be sent, we still use professional testing equipment to continuously scan through the frequency of every few minutes. Once the GPS is turned on, Sending a signal can be captured by the device for activation and detection. Generally, the transmission period of such GPS will not exceed 24 hours, and the sending time is mostly night. The reason is actually very simple. The installation of this GPS is for Tracking the car has nothing to do with the driver. The car usually runs on the road during the day and stops at the parking lot at night. At this time, the vehicle can be locked by the short signal sent by the deep sleep GPS, and the car position will remain unchanged.


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