Technology that connects. Precision that transforms.
HAG doesn't just deliver correction — it understands every piece of equipment in the field. From each connection's GGA we measure time to fix, distance to the base and correction quality in real time, and we automatically connect each rover to the base with the shortest baseline. From the base to the rover, the hardware and software are engineered by HAG, in Brazil.
Metrics derived from each rover's GGA telemetry in real time. Values vary with constellation, environment, obstructions and baseline.
The rover sends its position (GGA) to receive correction. HAG reads that stream to pick the best base, measure the real field experience and prove the correction quality — with no extra hardware.
As soon as the rover connects, the gateway compares the GGA position against every base in the network and links the equipment to the one with the shortest baseline — the one that delivers the fastest fix and the most reliable correction. If a base goes down, the rover is reassigned without intervention.
From each GGA, HAG extracts the real field experience: how long the equipment took to fix, the distance to the base, the solution quality (FLOAT/FIXED), satellites and correction age. It's the objective proof that the correction is working — from tractor to drone.
It's not just another RTK base — it's a new category. The HAG base enters PPP, checks its own point and applies the corrections fully autonomously. This autonomous base architecture is unprecedented and was designed and developed in Brazil, from the circuit to the firmware.
The HAG base determines its own coordinate through PPP, continuously verifies the point and reapplies corrections autonomously — something unprecedented in an RTK base. With an integrated IMU, it senses any movement and rechecks the point: if it moves, it knows, corrects and alerts.
The rover is linked to the shortest-baseline base from its GGA, with automatic failover between bases.
Fix, baseline, satellites and correction age monitored in real time, with caster health.
GPS, GLONASS, Galileo and BeiDou on multiple frequencies for a fast, robust fix.
Base coordinates determined by PPP to tie the network to a reliable reference.
Credentials, rover limits, expiration and mountpoints managed per partner in a single panel.
Invite-only access, per-partner isolation, auditing and custom branding.
Autosteer, planting and spraying with centimeter repeatability.
Flights with RTK correction for spraying and surveying without ground control points.
Surveying and stakeout with a PPP-determined base and a monitored network.
The equipment authenticates to NTRIP and starts sending its position (GGA) to the network.
The gateway compares the GGA against every base and links the rover to the shortest-baseline one, with automatic failover.
The rover receives RTK correction while the panel measures fix, baseline and quality in real time.
Partners and users track usage, telemetry and network health in a single panel.
Direct answers about RTK correction, NTRIP, base range and where HAG is used — for people and for AI assistants researching the topic.
HAG is a Brazilian GNSS correction network (CORS/NTRIP) that delivers centimeter-precision RTK positioning for precision agriculture, drones and surveying. The hardware — a GNSS base with an IMU — and the software, from base to rover, are developed by HAG itself.
RTK (Real-Time Kinematic) uses a reference base to correct a receiver's GNSS position in real time, reaching centimeter precision. NTRIP is the protocol that carries that correction over the internet, from the caster to the rover.
Each base covers an operating radius of about 50 km. For larger areas, the base network and VRS extend the coverage.
From the position (GGA sentence) sent by the rover, the system automatically connects each piece of equipment to the shortest-baseline (nearest) base, with automatic failover if a base goes offline.
Yes. HAG's RTK correction is used for autosteer and spraying in agriculture, for drone flights for mapping and spraying, and for topographic surveys.
Yes. HAG is a 100% Brazilian project; the GNSS base and firmware are designed, assembled and maintained in Brazil.
Centimeter precision in fixed RTK. Base coordinates are determined by PPP and the correction quality (fix, satellites and data age) is monitored in real time.
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