AVAI RTK
Centimeter-Level GNSS Positioning
Access 19,600+ global base stations for real-time RTK corrections. 2 cm accuracy for autonomous vehicles, mobile mapping, precision agriculture, and any application that demands survey-grade positioning.
Live Coverage Map
Explore base station locations and coverage zones in real time
Search any location to find nearby base stations and check precision coverage. Open full screen→
Global Network
Coverage Across 6 Continents
The AVAI RTK network spans 19,600+ base stations worldwide — one of the largest RTK correction networks in the world.
How It Works
From Satellite to Centimeter
Standard GNSS gives you 2–5 meter accuracy. RTK corrections close that gap to 2 centimeters — a 100x improvement that unlocks precision applications.
Base Station Network
Our global network of 19,600+ reference stations continuously tracks all major GNSS constellations — GPS, GLONASS, Galileo, and BeiDou — and measures atmospheric error sources in real time.
Correction Generation
Each station computes precise correction data by comparing known fixed positions against observed satellite signals. These corrections account for ionospheric delay, tropospheric effects, and orbital errors.
NTRIP Delivery
Corrections are streamed in real time via the industry-standard NTRIP protocol using RTCM 3.x messages. Your receiver connects to our caster and automatically selects the nearest base station.
Centimeter Positioning
Your GNSS receiver combines satellite signals with our correction stream to resolve carrier-phase ambiguities, achieving 2 cm horizontal accuracy within the 25 km high-precision zone.
Precision Levels
Two Tiers of Accuracy
Accuracy depends on your distance to the nearest base station. Our dense global network ensures high-precision coverage in most populated areas.
Within 25 km of a base station
Full carrier-phase RTK fix with integer ambiguity resolution. Ideal for autonomous vehicle testing, precision mapping, and survey-grade positioning.
Within 100 km of a base station
Network RTK corrections with partial ambiguity resolution. Suitable for fleet management, agricultural guidance, and general high-accuracy applications.
Pricing
Simple, Transparent Pricing
One license, one concurrent NTRIP stream. Start with a free trial, upgrade when you’re ready.
Free Trial
Try AVAI RTK with full access to all features — no credit card required.
- Centimeter-level accuracy
- Full RTK feature set
- Connects to nearest base station
- Any dual-band RTK device
- US, EU, UK, CA, AU, Middle East
- Setup in minutes
Monthly
Flexible month-to-month access. Cancel anytime, no long-term commitment.
- Centimeter-level accuracy
- Full RTK feature set
- Connects to nearest base station
- Any dual-band RTK device
- Global coverage — 6 continents
- Cancel anytime
Annual
Best value — two months free compared to monthly billing.
- Everything in Monthly
- 2 months free ($80 savings)
- Priority support
- Global coverage — 6 continents
- Any dual-band RTK device
- Uninterrupted 12-month access
Secure payment via Stripe. All plans include 1 license for 1 concurrent NTRIP stream.
Specifications
Technical Details
Our RTK service delivers corrections via the NTRIP protocol, compatible with all major GNSS receivers. Multi-constellation, multi-frequency support ensures maximum fix availability.
Compatibility
Works With All Major GNSS Receivers
AVAI RTK corrections are delivered via the industry-standard NTRIP protocol — plug in your receiver and start getting centimeter accuracy immediately.
Preferred Partner
Also Compatible With
Applications
Built for Precision Applications
Autonomous Vehicle Testing
Ground-truth positioning for AV sensor calibration, perception validation, and path-planning verification. Essential reference for OxTS INS/GNSS systems.
Mobile Mapping & Survey
Georeferenced LiDAR point clouds and camera imagery with centimeter-level accuracy. Critical for HD map creation and infrastructure survey.
Precision Agriculture
Auto-steer guidance, variable-rate application, and field boundary mapping with repeatable pass-to-pass accuracy for maximum yield efficiency.
Drone & UAV Operations
Precise takeoff/landing, corridor mapping, and photogrammetry missions. RTK-enabled drones achieve survey-grade accuracy without ground control points.
Construction & Infrastructure
Machine control, site layout, and as-built verification. Real-time centimeter positioning for excavators, graders, and paving equipment.
Fleet & Logistics
Lane-level vehicle tracking, geofenced delivery zones, and precise dock alignment. Go beyond standard GPS with meter-to-centimeter improvement.
Get Started with AVAI RTK
Explore our live coverage map to check station availability in your area, or contact us to set up NTRIP access for your fleet.