# Drotek XL RTK GPS
The Drotek XL RTK GPS receiver (opens new window) is a competitively priced RTK GPS module that can be configured as either base or rover. Using RTK, PX4 can get its position with centimetre-level accuracy, which is much more accurate than can be provided by a normal GPS.
# Purchase
Drotek XL RTK (opens new window) (drotek.com)
# Configuration
RTK setup and use on PX4 via QGroundControl is largely plug and play (see RTK GPS for more information).
TIP
The Drotek UCenter tool is not required for configuration - everything is handled by QGroundControl.
# Wiring and Connections
The module inputs/outputs are shown here (opens new window) (Drotek docs)