The OBS421X is a family of high performance, self-contained GPS/GLONASS/QZSS navigation modules designed and manufactured by u-blox AG. The modules offer an all-in-one solution for position, time, and velocity determination. The OBS421X provides high positioning accuracy of up to 2.2 m in America, Europe and Japan and has support for features such as AssistNow Online and AssistNow Autonomous. The module integrates innovative hardware, optimized RF performance, a fully qualified software protocol stack, and a set of system and application features. This versatile navigation module is ideal for applications in the commercial, industrial, automotive and consumer markets.