Using simultaneous Multi-GNSS technology in combination with active Anti-Jamming and advanced multipath mitigation, the GV series modules can provide one of the worlds most accurate positioning and navigation solutions. There are 2 units in the GV series family, the GV-8620 and GV-8720. While supporting GPS, SBAS, and QZSS modulation the GV-8620 features high position accuracy, fast TTFF time, and has high noise tolerance. This unit also has Dead Reckoning, which enables positioning in environments where no satellite signals are received. The GV-8720 add the capability to support concurrent GPS, GLONASS, SBAS, and QZSS to the already feature rich GV series.