RTK GNSS Receiver for Centimetre Positioning
An RTK GNSS receiver uses corrections from a base station to reach centimetre accuracy: 0.6 cm + 0.5 ppm horizontal and 1 cm + 1 ppm vertical, with about 7 s initialisation. Eview delivers it in the HB6, HB10, HB50 and HBEV11 rovers and the HB62 base, powered by Septentrio modules.
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GNSS positioning methods compared
| Method | Corrections | Typical accuracy | Notes |
|---|---|---|---|
| Standalone | None | Metre-level | Single receiver, no external data |
| SBAS | Satellite-based augmentation (e.g. EGNOS, WAAS) | Sub-metre to metre-level | Free, broadcast by geostationary satellites |
| DGNSS | Code corrections from a base or network | Sub-metre | Uses code, not carrier phase |
| Galileo HAS (PPP) | Free PPP corrections on Galileo E6-B or internet | Under 25 cm horizontal (initial service) | Full service targets about 20 cm H and 40 cm V (95%); no local base needed |
| RTK float | Base or network, RTCM v3 | Decimetre-level | Ambiguities not yet resolved |
| RTK fixed | Base or network, RTCM v3 | 0.6 cm + 0.5 ppm H, 1 cm + 1 ppm V | About 7 s initialisation; centimetre-level |
RTK figures are Septentrio module specifications; HAS figures are from EUSPA. Galileo HAS is supported on mosaic-G5 products such as the HBEV11.
Eview RTK receivers and base stations
| Product | Best for | Key specs |
|---|---|---|
| HB62 base | Your own RTK base station | mosaic-X5, NTRIP, Ethernet, 64 GB logging, IP67, 9–36 V |
| HB6 | Lightweight RTK rover | mosaic-X5, 100 Hz, 45 g, USB-C, microSD, 4.5–12 V |
| HB10 | RTK with heading and fast output | AsteRx-m3 Pro+, dual antenna, 0.15° at 1 m, 100 Hz, <10 ms latency |
| HB6 Pro | RTK and attitude in 45 g | mosaic-H, heading 0.15° / pitch or roll 0.25° at 1 m, RTK + attitude up to 20 Hz |
| HB50 | Low-power RTK | mosaic-G5 P3, 59 × 44 × 12 mm, 50 g, 0.44 W, 20 Hz |
| HB52 / HB52H | Ultralight RTK | mosaic-G5, 48 × 35 × 12.6 mm, USB-C, microSD |
| HBEV11 smart antenna | Base or rover in one unit | mosaic-G5, receiver and antenna, one M12 cable, Galileo HAS |
All products are quote-based. For a complete datasheet, email sales@gnss-solutions.com. Browse all box receivers and smart antennas.
Where RTK is used
How to set up RTK
RTK GNSS: frequently asked questions
RTK (Real-Time Kinematic) is a GNSS method that uses carrier-phase measurements and corrections from a nearby base station to give centimetre positions in real time. The base and rover see the same satellites, so shared errors cancel out once the carrier-phase ambiguities are resolved.
Eview receivers, powered by Septentrio modules, are specified at 0.6 cm + 0.5 ppm horizontal and 1 cm + 1 ppm vertical in RTK fixed mode. The ppm term grows with distance to the base, so 10 km adds 5 mm horizontally. See real-world RTK data.
In RTK float the receiver uses corrections but has not yet resolved the whole-cycle carrier ambiguities, so accuracy is decimetre-level. In RTK fixed the ambiguities are resolved and accuracy reaches the centimetre-level specification. Most applications wait for a fixed solution.
Yes. Network RTK delivers RTCM v3 corrections from a CORS network or NTRIP caster over the internet, so you only need a rover with a data link. Running your own HB62 base gives you control of the baseline and availability where no network exists.
RTK initialisation takes about 7 s with Septentrio modules. Galileo HAS PPP needs no local base, but it is decimetre-level: under 25 cm horizontal at initial service, and it takes longer to converge. RTK is still needed for centimetre work.
Related reading
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