November 10, 2025

A GNSS corrections map shows where RTK, PPP/PPP‑RTK, and SBAS are available and what accuracy to expect. Use it to match regional coverage to tolerances and see how corrections shrink 5–10 m standalone errors toward centimeters.

NTRIP turns the internet into a real-time pipeline for RTCM corrections, giving GNSS rovers centimeter-level positioning. You’ll learn the core client settings (host, port, credentials, mountpoint) and what to watch—RTK Fix status and correction age.