Network & Mountpoints
RTKdata operates a global RTK corrections network with 20,000+ reference stations and 99.99% uptime at the NTRIP endpoints. Under open-sky conditions, most users achieve RTK FIX in 5 to 20 seconds.
Connection Basics
All devices connect using the NTRIP (or NTRIPv2) protocol on port 2101. Your network must allow outbound TCP on port 2101. Firewalls, VPNs, and some mobile carriers can block this port -- see Troubleshooting if you have connection issues.
You need NTRIP credentials from the RTKdata Dashboard, not your website email and password. See Account & Credentials.
Regional Servers
Choose the server closest to your work area. All three servers share the same global base station network; the difference is routing latency.
Europe
eu.rtkdata.com
3.73.41.96
2101
North America
rtk.rtkdata.com
13.56.117.10
2101
Australia
aus.rtkdata.com
54.206.56.130
2101
When to use the IP fallback: Some older Android controllers, tablets, and embedded systems cannot resolve DNS hostnames. If your device fails to connect using the hostname, enter the IP address instead.
Mountpoints
RTKdata provides four mountpoints. Names are case-sensitive and must be entered in ALL CAPS. Use AUTO unless your project specifically requires a global reference frame.
AUTO
Recommended. Delivers corrections in your region's local datum (e.g., NAD83 in the US, ETRS89 in Europe, GDA2020 in Australia).
AUTO_ITRF2020
ITRF2020 at epoch 2015.0
AUTO_ITRF2014
ITRF2014 at current epoch
AUTO_WGS84
WGS84(G2139) at mid-year epoch
For the full list of regional datums delivered by AUTO per country, see Coordinate Systems & Datums.
How AUTO Selects a Base Station
When your device connects and sends its approximate position (via NMEA GGA), the RTKdata caster identifies the nearest reference station and begins streaming corrections from it. If you move across a coverage area, the system can hand off to a closer station automatically. This is why GGA output must be enabled -- without your position, the caster cannot assign a base station and you will receive no data. See NTRIP & GGA Essentials for details.
Heights
All corrections are delivered with ellipsoidal heights. If you need orthometric (mean sea level) elevations, apply a geoid model in your rover software or during post-processing. See Understanding Heights for guidance.
Quick Reference
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