HB56 RTK GNSS Receiver with SD Card Logging — Septentrio mosaic-X5
Flange-mount 100 Hz RTK GNSS receiver with on-board SD card logging
- Septentrio mosaic-X5, 448 channels, all constellations
- Centimetre-level RTK: 0.6 cm + 0.5 ppm, 7 s initialisation
- Up to 100 Hz output with <10 ms latency
- AIM+ anti-jamming and Galileo OSNMA anti-spoofing
- SD/MMC card slot for on-board raw data logging
- Metal enclosure with four mounting ears, 13 mm thick, 60 g
- 2 × UART, Micro USB, PPS output, event input, SMA antenna port
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RTK GNSS receiver with SD card logging in a flange-mount metal housing
The Eview HB56 is an RTK GNSS receiver with SD card logging, powered by the Septentrio mosaic-X5 and built into a flat metal enclosure with four screw-mount ears. It tracks every GNSS constellation on multiple frequencies and gives centimetre-level RTK positioning at up to 100 Hz, while recording raw measurements to a removable SD/MMC card. Screw it to a vehicle frame, robot chassis or equipment panel and it runs as a self-contained rover, base station or data logger. The HB56 is the single-antenna version; the HB56H adds dual-antenna heading in the same housing. The HB56 is part of our mosaic-X5 box receivers.
100 Hz positioning with low latency
The Septentrio mosaic-X5 inside has 448 hardware channels and outputs position and raw measurements at up to 100 Hz with less than 10 ms latency, which suits fast control loops on robots, machines and drones. RTK reaches 0.6 cm + 0.5 ppm horizontal in about 7 s, and the receiver can also work as a moving-base RTK station at 20 Hz.
AIM+ anti-jamming and OSNMA anti-spoofing
Septentrio AIM+ detects and suppresses narrowband, wideband and pulsed interference, so the HB56 keeps its fix near radio links, motors and power electronics. Galileo OSNMA authenticates satellite navigation data to protect against spoofing. Learn more about anti-jamming GNSS receivers and OSNMA anti-spoofing.
GNSS+ technologies
LOCK+ keeps tracking stable under vibration and shock. IONO+ protects RTK accuracy during ionospheric scintillation (why RTK drops after sunset). APME+ reduces multipath near buildings and metal structures. RAIM+ monitors position integrity.
On-board logging and easy integration
An SD/MMC card slot stores complete raw data on the receiver itself, so you do not need a separate logger for PPK, RINEX conversion or base-station recording. Two UARTs, PPS output and an event input are on two pin headers, and Micro USB gives a direct link to a PC for setup and downloads. The HB56 accepts RTCM v2.x/v3.x (including MSM) and CMR corrections, and outputs NMEA 0183, Septentrio SBF and RTCM. See our guide to NTRIP, RTCM and RINEX integration. Firmware and manuals are on our firmware downloads page.
Applications
- Robots and AGVs: 100 Hz centimetre positioning for outdoor delivery and service robots.
- UAVs and drones: RTK position with on-board raw logging for PPK mapping.
- Construction and mining: screw-mounted positioning for machines working near heavy metal structures.
- Vehicles and logistics: lane-level positioning for driver assistance testing and yard vehicles.
- Unmanned surface vessels: precise position for USVs and hydrographic survey boats.
- Surveying and GIS: compact base station or rover that logs its own raw data.
Frequently asked questions
What is the difference between the HB56 and the HB56H?
The HB56 uses the Septentrio mosaic-X5 with one antenna input for RTK positioning at up to 100 Hz. The HB56H uses the mosaic-H with two antenna inputs and adds GNSS heading and pitch or roll. Both share the same enclosure and interfaces.
How is the HB56 different from the HB6?
Both use the mosaic-X5 and log to a memory card. The HB56 has a flat metal housing with four screw-mount ears, a full-size SD/MMC slot, Micro USB and pin-header connectors. The HB6 is a smaller, lighter box (45 g) with USB Type-C and microSD.
Can the HB56 log raw data for post-processing?
Yes. It records complete raw measurements to an SD/MMC card. Septentrio SBF files can be converted to RINEX v2.x or v3.x for PPK and other post-processing software.
Can the HB56 be used as an RTK base station?
Yes. It works as a base or rover and can output RTCM corrections over UART or USB, while also logging its own data to the card.
How do I get the full HB56 datasheet or a quote?
Email sales@gnss-solutions.com for the complete datasheet, or ask a quote with your application and quantity.
Related reading
HB56 specifications
| GNSS engine | Septentrio mosaic-X5, 448 hardware channels |
|---|---|
| Versions | HB56: single antenna, positioning · HB56H: dual antenna, positioning + heading (mosaic-H) |
| GNSS signals | GPS L1C/A, L1C, L1P(Y), L2C, L2P, L5 · GLONASS L1, L2, L2P, L3 CDMA · Galileo E1, E5a, E5b, E5 AltBOC, E6 · BeiDou B1I, B1C, B2a, B2I, B2b, B3I · QZSS L1C/A, L1C/B, L2C, L5 · NavIC L5 · SBAS L1, L5 |
| RTK accuracy (RMS) | 0.6 cm + 0.5 ppm horizontal, 1 cm + 1 ppm vertical |
| Standalone / SBAS / DGNSS accuracy | 1.2 m / 0.6 m / 0.4 m horizontal; 1.9 m / 0.8 m / 0.7 m vertical |
| RTK initialisation | 7 s |
| Update rate / latency | Up to 100 Hz; <10 ms latency; moving-base RTK at 20 Hz |
| Velocity accuracy | 3 cm/s |
| Time to first fix | Cold <45 s, warm <20 s, reacquisition 1 s |
| Timing accuracy | xPPS 5 ns, event <20 ns |
| Tracking / acquisition sensitivity | 20 dB-Hz / 33 dB-Hz |
| Data formats | RTCM v2.x/v3.x (incl. MSM) in/out, CMR v2.0, CMR+ (input), NMEA 0183 v2.3/v3.03/v4.0, Septentrio SBF, RINEX v2.x/v3.x |
| Interfaces | 2 × UART, Micro USB, PPS output, event input, SD/MMC card slot, 1 × SMA antenna input |
| Dimensions / weight | 76 × 69 × 13 mm including mounting ears; 60 g |
| Environmental | Operating −40 to +85 °C, storage −55 to +85 °C, humidity 5–95 % non-condensing |
| Complete datasheet | On request: sales@gnss-solutions.com |
Product datasheet
The complete datasheet (GNSS signals, interfaces, pin-out, electrical and environmental specifications) is available on request. Email sales@gnss-solutions.com with the product name and your application.
Support documentation
Ask a quote or contact our engineers for integration support.




