The CUAV C-RTK 9P GPS Receiver is an RTK GPS module designed by CUAV for the professional market. It uses Ublox's F9P module, supports multi-satellite multi-frequency, and uses advanced RTK algorithms. It can build an RTK system with two identical C-RTK 9P modules. Using it, the PX4 can achieve centimeter-accurate position in seconds, which is much more accurate than the average GPS, and faster and more convenient than the previous generation M8P module.