M56 GNSS box receiver _ Powered by Septentrio Mosaic X5
The M56 GNSS RTK Box Receiver is a next-generation, multi-purpose, all-satellite all-frequency positioning and directional RTK solution powered by the Septentrio Mosaic X5 engine. Designed for the broadest range of professional applications — UAVs, automatic robots, precision control systems, precision agriculture, intelligent logistics, surveying and mapping, personnel protection, vehicle devices, handheld receivers, and geographic survey — the M56 delivers centimeter-level RTK accuracy, real-time directional output, and 448-channel full-constellation GNSS tracking in one of the lightest and most compact RTK receivers available at just 60 grams and 71 × 59 × 12mm.
The M56 achieves performance benchmarks previously reserved for much larger receivers through Septentrio Mosaic X5’s advanced processing architecture — featuring more than 2 million active correlators enabling deep satellite signal integration and robust tracking across all current GNSS constellations simultaneously. With 100Hz positioning and observation update rates, ultra-low latency under 10ms, AIM+/IONO+/APME+/LOCK+/RAIM+ complete anti-interference suite, OSNMA anti-spoofing, dual working modes as receiver and mobile base station, and TCXO/LNA integration with TF card slot for up to 32GB data logging, the M56 is the definitive all-purpose compact RTK GNSS solution for the next generation of autonomous and precision positioning applications.
Description
Product Overview M56 GNSS RTK Box Receiver — All-Satellite All-Frequency Positioning & Directional RTK | Powered by Septentrio Mosaic X5
Multi-Purpose All-Satellite All-Frequency RTK GNSS Receiver | 448 Channels | 2M+ Correlators | 100Hz | AIM+ Anti-Interference | OSNMA | 60g | UAV · Robotics · Precision Agriculture · Surveying · Logistics
The M56 GNSS RTK Box Receiver — powered by Septentrio Mosaic X5 — is an all-satellite all-frequency, multi-purpose compact RTK positioning and heading solution engineered for the widest possible range of precision GNSS applications. With support for GPS L1C/A/L1C/L1PY/L2C/L2P/L5, BeiDou B1I/B1C/B2a/B2I/B2b/B3I, GLONASS L1CA/L2CA/L2P/L3 CDMA, Galileo E1/E5a/E5b/E5 AltBOC/E6, NavIC L5, QZSS L1C/A/L1C/B/L2C/L5, and SBAS — the M56 covers every current GNSS constellation and frequency in a single 60-gram module that fits in the palm of your hand.
The M56’s performance foundation is Septentrio Mosaic X5’s processing architecture with more than 2 million active correlators — enabling simultaneous deep correlation across 448 hardware channels for the longest coherent integration time and most robust satellite signal tracking available in any compact GNSS receiver. This correlator density directly translates to better positioning performance in challenging signal environments: stronger acquisition of weak signals, more robust carrier phase tracking through interference and ionospheric scintillation, faster RTK initialization, and more reliable fix maintenance during high-dynamics UAV flight and vehicle maneuvers.
RTK horizontal accuracy of 0.6cm + 0.5ppm and vertical accuracy of 1cm + 1ppm, combined with 100Hz positioning and observation update rates and ultra-low latency under 10ms, make the M56 suitable for the most demanding real-time positioning applications — from centimeter-precision UAV photogrammetry and precision agriculture pass-to-pass guidance to intelligent robot navigation and high-frequency vehicle dynamics logging. Available in both single-antenna and dual-antenna configurations, the M56 provides directional output for applications requiring compass-free heading without magnetic sensor dependency.
Built on Septentrio’s proven signal integrity platform — AIM+ active interference monitoring and suppression, IONO+ ionospheric scintillation suppression, APME+ multipath mitigation, LOCK+ anti-shock and vibration tracking robustness, and RAIM+ receiver autonomous integrity monitoring — with OSNMA Galileo anti-spoofing authentication — the M56 maintains reliable centimeter-level RTK positioning through the most challenging electromagnetic and dynamic environments that UAV, agricultural, robotics, and logistics platforms encounter in daily operation.
The unique dual working mode architecture allows the M56 to operate as either a positioning receiver (rover) or a mobile base station — enabling self-contained RTK network deployment in field locations without CORS infrastructure, and providing maximum operational flexibility for precision agriculture, survey, and autonomous system applications across diverse geographic and connectivity environments.
Key Applications
- UAV / Drone Precision Positioning & Directional Navigation
- Automatic Robot & Autonomous System GNSS
- Precision Agriculture & Smart Farming Equipment
- Precision Control Systems
- Surveying & Mapping
- Geographic Survey & GIS
- Intelligent Logistics & Scheduling Systems
- Intelligent Robot Navigation
- Personnel Protection & Location Tracking
- Vehicle Device Applications
- Handheld GPS Receiver & Handheld Device Integration
- Driving Test & Vehicle Dynamics
- Personal Location Tracking
- RTK Mobile Base Station Deployment
Key Features
GNSS Performance
| Feature | Detail |
|---|---|
| GNSS Engine | Septentrio Mosaic X5 |
| Active Correlators | More than 2,000,000 (2 million+) |
| Tracking Channels | 448 hardware channels — simultaneous all-visible satellite tracking |
| Positioning Update Rate | Up to 100 Hz |
| Observation Update Rate | Up to 100 Hz |
| Latency | Less than 10 ms |
| Time Pulse Signal Frequency | 1 to 100 Hz |
| Tracking Sensitivity | 20 dB-Hz |
| Searching Sensitivity | 33 dB-Hz |
| Cold Start | 45 seconds |
| Signal Reacquisition | 1 second |
| Integrated Components | TCXO, LNA, TF card slot (up to 32GB) |
| Antenna Configuration | Single antenna or dual antenna — optional |
| Working Modes | Receiver (rover) and mobile base station |
Positioning Accuracy
| Mode | Horizontal | Vertical |
|---|---|---|
| RTK | 0.6 cm + 0.5 ppm (RMS) | 1 cm + 1 ppm (RMS) |
| Velocity Measurement | 0.03 m/s | — |
Communication & Interface
| Parameter | Value |
|---|---|
| Communication Interface | UART, USB |
| Baud Rate | 115,200 to 4M bps (optional) |
| LED Indicator | Status indicator with interference indicator function |
| RF Inputs | RF_IN1 (primary) + RF_IN2 (secondary / dual antenna) |
| Logic Pins | VCC, GND, TXD1, RXD1, TXD2, RXD2, PPS, EVENT, NRST |
Protocol Specifications
| Protocol | Version / Mode |
|---|---|
| NMEA 0183 | v2.3, v3.03, v4.0 — Input/Output ASCII |
| SBF (Septentrio Binary Format) | Input/Output |
| RTCM | v2.x, v3.x (including MSM) — Input/Output |
| RINEX | v2.x, v3.x — Logging |
| CMR | v2.0 — Input/Output |
| CMR+ | Input |
Physical Specifications
| Parameter | Value |
|---|---|
| Dimensions | 71 × 59 × 12 mm ± 0.3 mm |
| Weight | 60 grams |
Satellite System Support
| Satellite System | Supported Signals |
|---|---|
| GPS | L1C/A, L1C, L1PY, L2C, L2P, L5 |
| BeiDou (BDS) | B1I, B1C, B2a, B2I, B2b, B3I |
| GLONASS | L1CA, L2CA, L2P, L3 CDMA |
| Galileo | E1, E5a, E5b, E5 AltBOC, E6 |
| NavIC | L5 |
| QZSS | L1C/A, L1C/B, L2C, L5 |
| SBAS | EGNOS, WAAS, GAGAN, MSAS, SDCM (L1 & L5) |
Anti-Interference Technology Suite
AIM+ (Active Interference Monitoring & Suppression)
Detects and suppresses broadband, narrowband, and swept jamming signals in real time. Integrated interference indicator, mitigation engine, and spectrum measurement functions maintain reliable centimeter-level RTK positioning even in severely contested RF environments — urban UAV corridors, industrial automation facilities, and precision agriculture fields near high-power transmitters. AIM+ is Septentrio’s flagship real-time RF protection technology, proven across aerospace, defense, and precision agriculture deployments worldwide.
IONO+ (Ionospheric Scintillation Suppression)
Advanced protection against ionospheric interference — particularly outstanding in complex environments including equatorial regions, polar deployments, and periods of elevated solar activity. IONO+ maintains carrier phase tracking stability and RTK fix continuity in conditions that cause signal degradation and positioning loss on standard receivers, ensuring the M56 delivers reliable performance through the most challenging ionospheric events encountered in global precision positioning deployments.
APME+ (Advanced Phase Multipath Estimation)
Septentrio’s patented multipath suppression algorithm separates direct GNSS signals from reflected signals caused by buildings, vehicles, terrain, and infrastructure. Essential for UAV operations in urban environments, precision agriculture near farm structures, robot navigation in industrial facilities, and surveying in complex terrain — APME+ provides cleaner carrier phase measurements and better ambiguity resolution for all connected RTK applications.
LOCK+ (Excellent Tracking, Seismic and Shock Robustness)
Delivers superior signal tracking robustness through high-frequency vibration and mechanical shocks — specifically validated for UAV motor vibration, agricultural machinery engine vibration, robot actuator shock, and vehicle drivetrain loads. LOCK+ maintains continuous satellite lock through the high-dynamics maneuvers and vibration profiles of all M56 target platform categories, preventing the signal interruptions and re-initialization events that compromise positioning continuity.
RAIM+ (Receiver Autonomous Integrity Monitoring)
Continuously validates the integrity of GNSS positioning solutions in real time. Automatically detects and excludes faulty satellite signals without operator intervention — critical for personnel protection applications, intelligent logistics routing, autonomous robot navigation, and any application where undetected positioning errors have safety or operational consequences. RAIM+ provides the positioning integrity assurance required by professional-grade precision control and protection applications.
OSNMA (Open Service Navigation Message Authentication)
Hardware-level verification of Galileo navigation message authenticity — detecting and rejecting spoofed GNSS signals in real time. Provides security assurance for precision agriculture systems operating valuable autonomous equipment, intelligent logistics platforms, and personnel protection applications where deliberate GNSS signal manipulation poses an operational risk.
Competitive Advantages
- 2 million+ active correlators — deepest signal integration of any compact GNSS receiver for superior weak-signal and interference performance
- All-satellite all-frequency coverage — 8 constellations including NavIC, Galileo E5 AltBOC, GLONASS L3 CDMA in 60 grams
- Dual working modes — receiver and mobile base station in one module for complete field RTK independence
- Single and dual antenna configurations available — direction and heading output without magnetic compass
- Complete 5-technology anti-interference suite — AIM+, IONO+, APME+, LOCK+, RAIM+ in 71×59×12mm
- OSNMA anti-spoofing — hardware Galileo authentication for security-sensitive precision and protection applications
- 100Hz positioning AND 100Hz observation update rate — highest dual update rate available in compact RTK class
- Less than 10ms latency — real-time control loop integration for the fastest autonomous platform response
- Only 60 grams — lightest
