GPS03 is a GNSS module designed and manufactured by Hope Microelectronics. It has a dual frequency GNSS receiver with ceramic patch antenna and has built-in real time clock. This module is capable of receiving up to 72 channels, supporting GPS/BeiDou/Galileo/GLONASS systems with multi-constellation and multi-frequency combination. It also supports a range of protocols such as NMEA, RXM and RTCM2.0 and 3.2. The module has a position accuracy of 1.5m CEP, while a velocity accuracy of 0.1 m/s. The module has a tracking sensitivity of -160 dBm and is capable of a cold start in 26s. It also includes a supply voltage of 3.3 to 6V as well as a signal processing rate of 100Hz, allowing for a rapid response.