Buy RTK GNSS Receiver: The Complete Septentrio-Powered Buyer’s Guide
Choosing the right RTK GNSS receiver is a high-stakes decision. Get it wrong and you’re dealing with errors that compound into costly rework on construction sites, mis-mapped survey points, or unstable drone navigation. This guide shows you exactly which Septentrio-powered receiver — built by Eview GNSS Technology — fits your application, budget, and accuracy requirement.
All receivers here are built on Septentrio chipsets (mosaic-X5, mosaic-H, AsteRx M3 Pro+, or mosaic-G5) — the same core technology used in professional survey and precision-agriculture deployments worldwide, in a form factor engineered for commercial integrators and field operators.
What Is RTK GNSS and Why Does Chipset Choice Matter?
Real-Time Kinematic (RTK) GNSS delivers centimetre-level positioning by comparing signals between a rover receiver and a reference station. Standard single-frequency GNSS gives 3–5 m accuracy. RTK narrows that to 1 cm + 1 ppm — roughly 1 cm of horizontal error per kilometre of baseline.
The chipset determines everything: which constellations it tracks, how many signals it processes simultaneously, whether it survives jamming or spoofing, and how fast it recovers after signal loss. Septentrio chipsets lead on all four counts — and every Eview receiver is built around one.
Key Factors When Buying an RTK GNSS Receiver
Frequency bands: L1-only receivers are cheaper but slower to initialise. L1/L2/L5 with Galileo E6 is the gold standard for fast RTK under tree canopy, near structures, or in open sky. Constellation support: More systems (GPS, GLONASS, Galileo, BeiDou, QZSS, NavIC, SBAS) means better sky coverage and redundancy. Anti-jamming: Septentrio’s AIM+ continuously monitors the spectrum and notch-filters interference without losing lock. Output rate: Survey work needs 5–20 Hz; robotics and UAV autopilots need 50–100 Hz. All Eview receivers deliver up to 100 Hz RTK output.
Eview RTK GNSS Receiver Lineup — Full Comparison
Every model ships with Septentrio AIM+ anti-jamming, multi-constellation support, and 1 cm + 1 ppm RTK accuracy as standard.
| Model | Chipset | Channels | Frequencies | Heading | Best For |
|---|---|---|---|---|---|
| HB6 | mosaic-X5 | 448 | L1/L2/L5 | No | Survey, UAV base station |
| HB6 Pro 4G | mosaic-X5 | 448 | L1/L2/L5 | No | RTK over 4G LTE / NTRIP |
| HB52 / HB52H | mosaic-H | 448 | L1/L2/L5 | Yes (HB52H) | Machine control, heading platforms |
| HB51 | mosaic-H | 448 | L1/L2/L5 | Yes | OEM integration, robotics |
| HBEV11 | mosaic-G5 | 789 | L1/L2/L5 + E6 | No | eVTOL, precision ag, remote survey (free PPP) |
| RB3 | AsteRx M3 Pro+ | 544 | L1/L2/L5 + E6 | No | High-security, anti-jamming-critical |
Which RTK Receiver Should You Buy? Application Guide
HB6 — Best Entry-Level Septentrio Box Receiver
The HB6 runs on the mosaic-X5 and tracks 448 channels across GPS, GLONASS, Galileo, BeiDou, QZSS, and SBAS. It delivers 1 cm + 1 ppm RTK at up to 100 Hz and initialises in under 10 seconds in open sky. AIM+ anti-jamming is active by default. Ideal for survey rover, reference station, or UAV payload without built-in cellular.
HB6 Pro 4G — RTK Over Cellular for NTRIP Workflows
The HB6 Pro 4G adds built-in 4G LTE to the mosaic-X5 platform. Connect directly to an NTRIP caster or VRS network — a self-contained RTK rover with no separate modem or base station required. Best for survey teams across large areas or machine-control installations where cellular coverage is reliable.
HB52H — Dual-Antenna Heading for Machine Control
The HB52H connects two GNSS antennas and derives a precise heading without any IMU or magnetometer. Based on the mosaic-H chipset with FAST6 technology, it delivers dual-antenna heading at up to 100 Hz. The right choice for autonomous agricultural machinery, construction vehicles, and any platform needing both centimetre position and degree-level heading in one receiver.
HB51 — OEM Board for Custom Integration
The HB51 exposes the mosaic-H chipset in an OEM board form factor for integrators building custom enclosures. Full dual-antenna heading, AIM+, and 100 Hz output. If you’re designing a custom housing, robotics platform, or industrial system, the HB51 is the board to build around.
HBEV11 — Galileo E6 HAS Free PPP, No Base Station Needed
The HBEV11 uses the Septentrio mosaic-G5 with 789 channels and Galileo E6 HAS support — delivering free, subscription-free PPP corrections direct from the Galileo signal. Sub-20 cm globally with HAS, 1 cm with RTK. The integrated smart antenna minimises cabling. Best for remote survey, precision agriculture at scale, and eVTOL navigation where base station infrastructure is unavailable.
RB3 — AsteRx M3 Pro+ for Maximum Jamming Resilience
The RB3 runs the Septentrio AsteRx M3 Pro+ — 544 channels, highest-grade AIM+, and full Galileo E6/OSNMA support. Designed for environments with persistent GNSS interference: port automation, critical infrastructure inspection, industrial drone flights over congested RF environments.
Frequently Asked Questions
What RTK accuracy can I expect?
All Eview receivers deliver 1 cm + 1 ppm horizontal and 2 cm + 1 ppm vertical RTK accuracy with a good base station and open sky. In free PPP mode (HBEV11 with Galileo HAS), expect sub-20 cm horizontal with no infrastructure cost.
Do I need a base station for RTK?
For standard RTK, yes — either your own base station or an NTRIP/VRS correction network. The HB6 Pro 4G connects to NTRIP directly over 4G. The HBEV11 with Galileo E6 HAS delivers free sub-20 cm corrections from space with no infrastructure — ideal where coverage is unavailable.
What is AIM+ and do I need it?
AIM+ (Advanced Interference Mitigation) is Septentrio’s real-time spectral monitoring and notch-filtering system. It detects jamming and removes it from the received spectrum without interrupting position output. If your application involves urban environments, industrial sites, or near-airport operations, AIM+ is essential — and all Eview receivers include it.
What is the difference between mosaic-X5 and mosaic-G5?
The mosaic-X5 tracks 448 channels across L1/L2/L5. The mosaic-G5 adds Galileo E6 HAS and expands to 789 channels (P3 variant), enabling free global PPP corrections with no subscription. For base station or NTRIP workflows, mosaic-X5 is excellent. For free corrections anywhere in the world, mosaic-G5 is the upgrade.
Can Eview receivers be used in drones?
Yes. The HB6 and HBEV11 are both used in commercial UAV applications. Key specs: 100 Hz RTK output rate (essential for autopilot loops), AIM+ for RF-noisy environments, and under 10-second initialisation. The HBEV11’s integrated smart antenna minimises cabling weight for airframe integration.
How do I choose between HB52 and HB52H?
The HB52H is the dual-antenna heading variant — it derives heading from two GNSS antennas independently of vehicle motion, speed, or magnetic interference. If your machine needs heading as well as position (autonomous ag equipment, construction machines), choose HB52H. For single-antenna position-only use, HB52 is sufficient.
Browse the Full Eview RTK GNSS Receiver Range
All Eview receivers ship with full Septentrio firmware, documentation, and direct technical support from the Eview team.
