TECHSHIP IS A GLOBAL SUPPLIER OF WIRELESS COMPONENTS
Document summarizing and describing the GPS systems epoch roll over dates in Simcom products GPS trackers and how to take precaution for it.
Datasheet for SimCom SIM900B. This document includes an overview of SIM900B and it's features. For more detailed technical information, see the SimCom SIM900B Hardware Guide.
This document describes SIM900B hardware interface in great detail. This document can help user to quickly understand SIM900B interface specifications, electrical and mechanical details. With the help of this document and other SIM900 application notes, user guide, users can use SIM900B to design various applications quickly.