Posts Tagged ‘cell phone gps’
How does cell phone GPS work?
In times past if you wanted to know your exact location or get navigation assistance you needed a dedicated GPS device, like a Garmin or a TomTom. These days most cell phones have GPS receivers built-in, particularly those manufactured since February 2005.
In 2005, the FCC required that, for the purpose of locating cell phone callers in an emergency, when a cell phone user rang 911 it should automatically transmit information on the caller’s location to the PSAP (Public Safety Answering Point). Cell phone manufacturers responded to the new requirements (known as E911) by building phones with GPS receivers built-in that could provide location information, pinpointing a caller’s position to within 6 meters.
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