1) GT-3731 are fast Acquisition Enhanced Sensitivity, 65 Channels GPS Receiver. It is a compact all-in-one GPS receiver that continuously tracks all satellites in view and provides accurate satellite positioning data. 2) Its 65 parallel channels and 20000+ correlates provide fast satellite signal acquisition and short start-up time. Acquisition sensitivity of -155dBm and tracking sensitivity of -158 dBm offer good performance even under difficult environments. 3) The GT-3731 are optimized for applications requiring good performance and low cost. it is suitable for a wide range of handhelds, asset tracking, Notebook, PDA-centric personal navigation system, and vehicle navigation products. * Features 1. Built in 18x18x2mm patch antenna for smaller module dimension demand. 2. Adopts KDS 0.5PPM precision TCXO 3. Built- RTC crystal and picofarads capacitance faster hot start 4. 1-10HZ update rate positioning 5. Support Assist Now Online and Assist Now Offline A-GPS ser