source:4G GPS Tracker release time:2024-05-14 Hits: Popular:realtime gps tracker online
Is there a GPS locator that doesn't require a phone card? It depends on your usage. If it is used for positioning, there is still no such device available on the current market.
After receiving signals from GPS satellites, GPS locators calculate latitude and longitude information through software. This information must be transmitted in order to be received by other devices, so that those who need to know the location of this locator can receive this information. So in the current situation, transmitting information can only rely on mobile network, and there are no other public networks available, so a SIM card for mobile phones is essential.
When applied to navigation, there is no need to transmit latitude and longitude information, and latitude and longitude can be calculated locally without the need for a phone card.
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