HB9 GNSS Box Receiver – Powered by Septentrio AsteRx M3 Pro+
The HB9 GNSS Box Receiver is a professional-grade, multi-band, multi-constellation RTK positioning and orientation solution powered by the industry-proven Septentrio AsteRx M3 Pro+ engine. Engineered for UAVs, driverless vehicles, unmanned ships, plant protection drones, inspection drones, fully automatic robots, and precision control systems, the HB9 delivers centimeter-level RTK accuracy with Septentrio’s most advanced signal integrity and anti-interference architecture — AIM+, APME+, IONO+, Lock+, and OSNMA — in a compact, integration-ready box receiver form factor.
Supporting all major satellite constellations simultaneously — GPS, BeiDou, GLONASS, Galileo, NavIC, QZSS, and SBAS — with a maximum 100Hz navigation update rate, ultra-low latency under 10ms, dual-antenna heading output, and single or dual antenna configuration options, the HB9 is purpose-built for the next generation of autonomous platforms that demand reliable, accurate, and interference-resilient GNSS positioning in real-world operational environments.
Description
Product Overview- HB9 GNSS Box Receiver
RTK GNSS Receiver | Dual-Antenna Heading | Multi-Constellation | AIM+ Anti-Interference | 100Hz | UAV · Autonomous Vehicles · Robotics · Unmanned Systems
The HB9 GNSS Box Receiver — powered by Septentrio AsteRx M3 Pro+ — is a high-precision multi-band RTK GNSS receiver and heading system engineered for the most demanding autonomous and unmanned applications. The Septentrio AsteRx M3 Pro+ is Septentrio’s professional-grade GNSS engine, delivering the proven signal processing performance deployed in aerospace, defense, precision agriculture, and geodetic infrastructure worldwide — now integrated into the compact HB9 box receiver form factor optimized for UAV, robotics, and autonomous vehicle platform integration.
Supporting GPS L1C/A/L1C/L2C/L2P(Y)/L5, BeiDou B1I/B1C/B2a/B2I/B3I, GLONASS L1C/A/L2C/A/L3/L2P, Galileo E1/E5a/E5b, NavIC L5, QZSS L1C/A/L1C/L2C/L5, and SBAS (EGNOS, WAAS, GAGAN, MSAS, SDCM) — the HB9 provides complete multi-constellation signal coverage that maximizes satellite availability, improves positioning geometry, and delivers the redundancy essential for reliable autonomous platform operation across all geographic regions and operating environments.
RTK horizontal accuracy of 1.5cm and vertical accuracy of 1cm, with a 100Hz maximum navigation update rate, ultra-low latency under 10ms, and cold start acquisition in under 45 seconds, ensure that the HB9 achieves and maintains RTK fix rapidly and reliably for time-critical drone missions, autonomous vehicle navigation, and precision control applications. The dual-antenna design (Mosaic-H configuration) provides real-time heading and attitude output with orientation accuracy of 0.05° at 5-meter antenna spacing and 0.15° at 1-meter spacing — eliminating magnetic compass dependency for UAVs and autonomous vehicles operating in electromagnetically disturbed environments.
Built on Septentrio AsteRx M3 Pro+’s complete anti-interference platform — AIM+ active interference monitoring and suppression, APME+ multipath mitigation, IONO+ ionospheric scintillation suppression, Lock+ anti-shock and vibration tracking robustness, and OSNMA Galileo anti-spoofing authentication — the HB9 maintains signal integrity and centimeter-level RTK positioning through high-vibration UAV flight, fast ground vehicle maneuvers, and RF-contested environments where standard GNSS receivers fail.
Key Applications
- UAV / Plant Protection Drone Navigation & Positioning
- Inspection Drone Precision Heading & Flight Control
- Driverless / Autonomous Ground Vehicle GNSS
- Unmanned Surface Vessel (USV) Navigation & Heading
- Fully Automatic Robot Positioning & Guidance
- Precision Agriculture Machine Control
- Industrial Automation & Precision Control Systems
- Earthquake & Structural Monitoring
- Geodetic Survey & Reference Applications
- OEM Integration into Autonomous Platforms
Key Features
GNSS Performance
| Feature | Detail |
|---|---|
| GNSS Engine | Septentrio AsteRx M3 Pro+ |
| Maximum Navigation Update Rate | 100 Hz |
| Ultra-Low Latency | Less than 10 ms |
| Cold Start TTFF | Less than 45 seconds |
| Signal Reacquisition | Less than 1 second |
| Tracking Sensitivity | 20 dB-Hz |
| Acquisition Sensitivity | 33 dB-Hz |
| Antenna Configuration | Single antenna or dual antenna — optional |
Positioning Accuracy (RMS)
| Mode | Horizontal | Vertical |
|---|---|---|
| RTK | 1.5 cm + 1 ppm | 1 cm + 1 ppm |
| GNSS Standalone | 2.5 m | — |
| Velocity Accuracy | 0.03 m/s | — |
| PPS Timing Accuracy | 5 ns | — |
Heading & Attitude Accuracy (Dual Antenna)
| Antenna Spacing | Heading / Orientation Accuracy | Pitch / Roll Accuracy |
|---|---|---|
| 1 meter | 0.15° | 0.25° |
| 5 meters | 0.05° | 0.05° |
Satellite System Support
| Satellite System | Supported Signals |
|---|---|
| GPS | L1C/A, L1C, L2C, L2P(Y), L5 |
| BeiDou (BDS) | B1I, B1C, B2a, B2I, B3I |
| GLONASS | L1C/A, L2C/A, L3, L2P |
| Galileo | E1, E5a, E5b |
| NavIC | L5 |
| QZSS | L1C/A, L1C, L2C, L5 |
| SBAS | EGNOS (Europe), WAAS (USA), GAGAN (India), MSAS (Japan), SDCM (Russia) |
Anti-Interference Technology Suite — Detailed
AIM+ (Active Interference Monitoring & Mitigation)
Septentrio’s flagship real-time RF protection technology. Detects, characterizes, and suppresses broadband, narrowband, and swept jamming signals continuously — including interference indicator, active mitigation engine, and spectrum measurement functions. Maintains reliable centimeter-level RTK positioning in congested RF environments including urban drone corridors, industrial automation facilities, and agricultural areas near high-power radio transmitters. AIM+ is battle-tested in aerospace, defense, and precision agriculture deployments where RF interference is unavoidable.
APME+ (Advanced Phase Multipath Estimation)
Septentrio’s patented multipath suppression algorithm. Separates direct GNSS signals from reflected signals caused by buildings, vehicles, terrain, and nearby structures. Provides clean carrier phase measurements for UAV operations near urban structures, autonomous ground vehicles navigating complex environments, and precision agriculture systems working adjacent to farm buildings and equipment. APME+ directly improves RTK ambiguity resolution reliability and reduces carrier phase noise in multipath-rich environments.
IONO+ (Ionospheric Scintillation Suppression)
Advanced real-time protection against ionospheric interference — particularly outstanding in complex environments. Maintains carrier phase tracking stability during strong ionospheric scintillation events that would cause signal degradation and RTK fix loss on standard receivers. Critical for UAV operations in equatorial and polar regions, long-range autonomous vehicle deployments, and precision positioning during solar weather events. IONO+’s effectiveness in complex environments is one of the distinguishing performance characteristics of Septentrio AsteRx M3 Pro+ versus competing GNSS engines.
Lock+ (Anti-Shock & Vibration Robustness)
Purpose-built for the high-frequency vibration, mechanical shocks, and rapid dynamic maneuvers of UAV and autonomous vehicle platforms. Lock+ maintains continuous satellite lock through drone motor and propeller vibration, agricultural machinery engine loads, robot actuator shocks, and fast vehicle maneuvers — preventing the signal interruptions and RTK re-initialization that compromise positioning continuity on competing receivers. Lock+ is validated for the full vibration spectrum of commercial UAV and industrial autonomous platform operation.
OSNMA (Open Service Navigation Message Authentication)
Hardware-level verification of Galileo navigation message authenticity in real time. Detects and rejects spoofed GNSS signals before they corrupt the position solution — providing security assurance for UAVs operating in contested airspace, autonomous vehicles navigating public roads, and precision control systems where deliberate GNSS signal manipulation poses an operational or safety risk. OSNMA is supported natively by the Septentrio AsteRx M3 Pro+ engine with no additional hardware required.
HB9 vs HB6 — AsteRx M3 Pro+ vs Mosaic X5 Comparison
| Feature | HB9 — AsteRx M3 Pro+ | HB6 — Mosaic X5 |
|---|---|---|
| GNSS Engine | Septentrio AsteRx M3 Pro+ | Septentrio Mosaic X5 |
| RTK Horizontal Accuracy | 1.5 cm + 1 ppm | 0.6 cm + 0.5 ppm |
| Max Update Rate | 100 Hz | 100 Hz |
| Anti-Interference | AIM+, APME+, IONO+, Lock+, OSNMA | AIM+, APME+, IONO+, Lock+, RAIM+, OSNMA |
| NavIC Support | Yes — L5 | Yes — L5 |
| Galileo E5 AltBOC | Not specified | Supported |
| Proven Platform | Aerospace, defense, precision agriculture | Mass market GNSS, UAV, robotics |
| Best For | Defense-grade reliability, interference-heavy environments | Highest RTK accuracy, broadest frequency coverage |
Standards & Compatibility
- Output Protocols: NMEA 0183, SBF (Septentrio Binary Format), RINEX, RTCM, CMR / CMR+
- Interface: UART, USB
- Baud Rate: 115,200 to 4 Mbps
- Antenna Options: Single antenna or dual antenna — selectable at order
- Platform Integration: Compatible with UAV autopilots (ArduPilot, PX4), ROS, autonomous vehicle systems, robotics OEM platforms, precision agriculture controllers
Disclaimer
Specifications subject to change without notice. All accuracy values are nominal RMS under open-sky conditions unless stated otherwise.
