At the heart is a powerfull GSM cellular module (we use the latest SIM5320A) with integrated GPS. This module can do just about everything.Quad-band 850MHz GSM, 900MHz EGSM, 1800MHz DCS, 1900MHz PCs - connect onto any global GSM network with any 2G SIM.
This is the American Version dual-band UMTS/HSDPA 850/1900MHz WCDMA + HSDPA
Fully-integrated GPS (Qualcomm PM8015 GPS) that can be controlled and query over the same serial port
Make and receive voice calls using a headset or an external 8Ω speaker + electret microphone
Send and receive SMS messages
Send and receive GPRS data (TCP/IP, HTTP, etc.)
AT command interface can be used with 300, 600, 1200, 4800, 9600, 19200, 38400, 57600, 115200, 230K, 461K, 961K, 3.2M, 3.7M and 4.0Mbps
Native USB support - plug it into a computer and you'll get serial ports for GPS and Here's the GPS specifications:
16 acquisition channels
GPS L1 C/A code
Sensitivity
Tracking: -157 dBm
Cold starts : -144 dBm
Time-To-First-Fix
Cold starts: 100s (typ.)
Hot starts: 1s (typ.)
Accuracy: approx 2.5 meters