source:4G GPS Tracker release time:2024-05-09 Hits: Popular:realtime gps tracker online
I have talked to some clients during consultations, and many of them have expressed that they do not know why GPS locators use SIM cards, and every GPS device produced by a company needs to install a mobile SIM card? So what does a SIM card do?
This problem starts with the principle of GPS: GPS locators obtain satellite signals to calculate latitude and longitude, and then transmit them to the server through a SIM card network. The server parses the specific information and presents it on a mobile app or computer.
So, SIM cards play a role in data transmission.
Of course, there are also some manufacturers who promote that they do not use SIM cards, which is just a way for manufacturers to exchange concepts. In fact, they are directly soldering SIM chips onto the device. This makes the customer think they don't need a SIM card anymore.
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