A330 BDS-3 Data Transmission Terminal supports BDS‑2/BDS‑3 regional short messaging and single BeiDou positioning, with optional 4G dual-mode transmission. It realizes location reporting, command exchange and data transmission via BeiDou satellites when public networks are unavailable. Featuring low power consumption, stable operation, easy installation and secondary development support, the IP68-rated terminal adapts to harsh environments. Widely used in emergency rescue, hydrology, power patrol, forestry, pipeline and marine monitoring for in