Contributed to the PX4-user_guide repository by enhancing the RTK GPS documentation, specifically adding detailed information about the Navisys L1/L2 ZED-F9P RTK Base receiver. Focused on improving documentation clarity, the work provided compatibility details and selection guidance to assist developers in choosing appropriate RTK GPS options. The approach emphasized clear, structured communication using Markdown, ensuring that technical information was accessible and traceable for both onboarding and ongoing maintenance. No bug fixes were recorded during this period, with efforts concentrated on documentation quality and repository auditability. The contribution supported better user understanding and streamlined the integration of RTK GPS hardware.