Assisted GPS or Augmented GPS (abbreviated generally as A-GPS and less commonly as aGPS) is a system that often significantly improves the startup performance—i.e., time-to-first-fix (TTFF)—of a GPS satellite-based positioning system. A-GPS is extensively used with GPS-capable cellular phones, as its development was accelerated by the U.S. FCC's 911 requirement to make cell phone location data available to emergency call dispatchers.

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    I have a FW written with IAR on STM32L This is a GPS and GSM locator with ublox modules, the device sends its position via GPRS connection to a server web site Map. everything works great in the FW only one problem i have, sometimes by switch on the device, the tracker no longer works (it can no longer send data to the server, to make it work again I have to send them a command via SMS. so i beli...

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