This guide will walk you through the step-by-step process of establishing an NTRIP (Networked Transport of RTCM via Internet Protocol) connection in Geolantis software to achieve centimeter-level RTK accuracy for your GNSS surveying work.
What is NTRIP? #
NTRIP enables real-time distribution of RTK correction data via the internet, allowing your GNSS receiver to achieve high-precision positioning without needing a dedicated radio link to a reference station. This technology provides centimeter-level accuracy by correcting satellite signal errors in real-time.
Prerequisites #
Before setting up NTRIP, ensure you have:
- NTRIP credentials (IP address/hostname, port, username, password, mountpoint information)
- An active NTRIP service subscription from a provider
- RTK-capable GNSS antenna connected to your device
Connect your device – Geolantis.360 Knowledgebase - Stable internet connection (Wi-Fi or mobile data)
Video Tutorial #
Step-by-Step Tutorial #
1. Initial Setup #
- Login to Geolantis and open any existing project
- Ensure your RTK-capable GNSS antenna is properly connected to your device
- Verify you have a stable internet connection
2. Access NTRIP Configuration #
- Click the phone receiver icon in the interface
- Select “NTRIP profiles” from the menu
3. Create a New Profile #
- If you haven’t created any profiles yet, click the “+” symbol to create a new profile
- Choose an individual profile name that helps you identify this specific NTRIP service
4. Configure Connection Settings #
- Enter the IP address or web address provided by your NTRIP service provider
- Enter the port number
- Input your username and password (these are case-sensitive, so enter them exactly as provided)
5. Select Mountpoint #
- Click “Fetch Mountpoints” – this will download all available options from the NTRIP service
- Note: This should work with just the IP/web address and port – no credentials needed for fetching
- Select the correct mountpoint for your purpose or region
- Consult your service provider’s recommendations
- Ask local surveyors or GNSS professionals if unsure about the best option
6. Save and Connect #
- Save the new profile once all settings are configured
- Select the profile you want to use (required for first-time setup)
- Click “Connect” to establish the NTRIP connection
7. Verify RTK Status #
- Wait for RTK Fixed status – this indicates the highest accuracy level
- Monitor your position accuracy – it should improve to centimeter-level precision
- Once RTK Fixed is achieved, you can begin collecting survey data
Understanding RTK Status Indicators #
- RTK Fixed: Best accuracy (centimeter-level) – optimal for surveying
- RTK Float: Intermediate accuracy – still processing corrections
- DGPS/Autonomous: Lower accuracy – corrections not being applied properly
Troubleshooting Common Issues #
If you experience connection problems or poor accuracy, try these solutions in order:
1. Check internet connectivity on your device #
- Test by loading a website to confirm active internet service
- Avoid using cached pages for testing
2. Test mountpoint fetching #
- Test by loading a website to confirm active internet service
- Avoid using cached pages for testing
3. Try alternative internet connection #
- Switch from Wi-Fi to mobile data or vice versa
- Some Wi-Fi networks block specific IPs or ports used by NTRIP services
- Corporate or public Wi-Fi may have firewall restrictions
4. Accuracy Issues: Restart your equipment #
- Power cycle your GNSS hardware
- Close and restart the Geolantis software
5. Accuracy Issues: Check for service interruptions #
- Review emails from your NTRIP provider for scheduled downtime
- Verify your subscription is active and covers your working area
6. Contact technical support #
- Reach out to your NTRIP service provider for service-specific issues
- Contact PelicanCorp support for Geolantis software-related problems
Best Practices for Optimal Performance #
- Ensure clear sky view: Position your antenna with minimal obstructions
- Maintain stable internet: Consistent data connection is crucial for RTK corrections
- Monitor satellite count: Typically need 4+ satellites for good positioning
- Check baseline distance: Optimal accuracy within 20-30 km of reference stations
- Allow sufficient time: RTK initialization can take several minutes in challenging conditions
Technical Notes #
- RTK corrections require continuous internet connectivity to maintain accuracy
- Different mountpoint types (VRS, Single Baseline, iMAX) may be available depending on your provider
- Different mountpoints provide corrections in different coordinate systems and reference frames (e.g., ETRS89 for Austria, WGS84 globally, ITRF2020 for geodetic work) — select the correct mountpoint based on your location and coordinate system requirements