Built-in BY682E GNSS high-precision positioning and heading board, support BDS: B1, B2; GPS: L1, L2C, L2P; GLONASS: G1, G2; QZSS: L1, L2; Support single-system or multi-system joint solution; Embed new generation of RTK algorithm engine, more intelligent built-in algorithms and more efficient RTK solutions; Support three vector RTK solution to further optimize the stability of positioning and heading under dynamic conditions; 9~36V wide voltage input with overcurrent and reverse connection protection; Two RS232 serial ports and one RJ54 ethernet port.