The T51 positioning terminal is an all-in-one positioning device supporting dual-frequency multi-constellation positioning on L1 and L5 bands. It is compatible with the new-generation BDS-3 signal system, and supports all global civil navigation satellite systems, including GPS, BDS, GLONASS, Galileo, etc. It greatly improves satellite positioning accuracy to sub-meter level, and features strong anti-interference capability, excellent multipath mitigation performance and low power consumption.