The FSP04 is a POT (Patch on Top) GPS receiver module and include a complete navigation processor. The processor is designed by SiRF Technology, Inc., which is a pioneer of GPS chip for consumer applications. This GPS receiver can tracks to -163dBm, providing high sensibility, accuracy and availability. The embedded CGEE (Client Generated Extended Ephemeris) can capture ephemeris data from satellites locally and predicts ephemeris out to 3 days. So if the module was off within 3 days, it could complete positioning process less than 15 seconds. This GPS solution is designed for a small form and extensive applications. It delivers major advancements in GPS performances, accuracy, integration, computing power and flexibility. It is also designed to simplify the embedded system integration process.