The Ebyte EWM108-GN06B and EWM108-GN06BS are industrial-grade BDS-only navigation modules supporting B1I, B1C, B2I, B3I, B2a, and B2b multi-frequency signals to deliver centimeter-level, high-precision RTK positioning for surveying and autonomous vehicle tracking in harsh environments.
| Spec Category | Parameter Dimension | EWM108-GN06B | EWM108-GN06BS |
| Basic Info | Module Type | High-Precision BDS-Only Navigation | High-Precision BDS-Only Navigation |
| Positioning Grade | Centimeter-level RTK accuracy | Centimeter-level RTK accuracy | |
| RF & Satellites | Supported Constellation | BeiDou (BDS) Only | BeiDou (BDS) Only |
| Signal Bands | B1I, B1C, B2I, B3I, B2a, B2b | B1I, B1C, B2I, B3I, B2a, B2b | |
| Electrical Specs | Operating Voltage | 3.3V DC | 3.3V DC |
| Communication Interface | UART / Serial | UART / Serial | |
| Physical & Environmental | Hardware Form Factor | Surface-mount design (SMD) | Surface-mount design (SMD) |
| Operating Temperature | -40 to +85 degrees Celsius | -40 to +85 degrees Celsius | |
| Package Variety | Standard variant | Specialized/compact layout variant |
Core Product Features
BeiDou III System Compatibility
Full support for China's BeiDou-3 constellation with 176-channel reception capacity.
Military-Grade Timing Accuracy
10ns time synchronization precision for 5G base stations and smart grid applications.
Urban Canyon Optimization
Proprietary anti-jamming hardware accelerates signal acquisition in dense urban areas.
Dual Power Profiles
- Tracking Mode: 52mA @3.3V (GN06B) / 48mA @3.3V (GN06BS)
- Sleep Mode: 48μA @3.3V (GN06B) / 49μA @3.3V (GN06BS)
Technical Specifications
Positioning Performance
- Update Rate: 1-20Hz configurable
- Horizontal Accuracy: <1.0m CEP50 (static)
- Velocity Accuracy: <0.05m/s
Electrical Parameters
- Voltage Range: 3.0V-4.3V DC
- Interface: UART @ 4800-460800bps (default 115200)
- Sensitivity: -162dBm tracking, -156dBm hot start
Mechanical Specifications
- GN06B Dimensions: 9.7×10.5×2.4mm (±0.2mm)
- GN06BS Dimensions: 12.2×16.0×2.4mm (±0.2mm)
- Antenna Interface: Stamped hole pad
Practical Application Scenarios
Scenario 1: Precision Agriculture & Autonomous Tractor Steering
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Regional Industry Pain Points: Modern smart farming in the Asia-Pacific region and Middle East relies heavily on automated steering systems for planting and harvesting. Standard GPS modules have a positioning error of 2.5 meters, which causes overlapping rows, crop damage, and wasted fertilizer during dark or dusty field operations.
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Ebyte Technical Solution: By integrating the EWM108-GN06B module directly into tractor navigation controllers, farming equipment manufacturers achieve reliable centimeter-level positioning using multi-frequency RTK corrections across BDS B1I/B1C/B2I/B3I/B2a/B2b. This high-precision tracking guides tractors along identical paths within 2 centimeters, maximizing land yield and lowering fuel consumption.
Scenario 2: Unmanned Aerial Vehicle (UAV) Surveying and Mapping
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Regional Industry Pain Points: Professional mapping drones need highly precise geotagging for aerial photogrammetry. Traditional GPS solutions require extensive Ground Control Points (GCPs) to be placed manually across mountainous or hazardous terrain, greatly increasing field survey labor times and physical risks.
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Ebyte Technical Solution: The lightweight EWM108-GN06BS SMD module easily mounts onto compact UAV flight control boards. Processing real-time multi-frequency BeiDou satellite signals, the module calculates precise, millimeter-accurate camera exposure coordinates. This eliminates the need for physical ground markers, reducing project turnaround times from days to hours.
Scenario 3: Structural Displacement and Landslide Monitoring Systems
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Regional Industry Pain Points: Critical infrastructure, such as high-voltage power transmission towers, concrete dams, and steep highway cliffs, require continuous monitoring for tiny geological shifts. Early signs of land slippage are often under 2 centimeters, rendering standard sub-meter GPS receivers useless for preventative disasters.
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Ebyte Technical Solution: By deploying static monitoring stations equipped with the EWM108-GN06B and external high-gain antennas along structural points, engineering agencies can track microscopic spatial shifts in real-time. By utilizing BDS multi-frequency carrier phase measurements, the monitoring system detects structural displacements down to the millimeter range, instantly triggering remote cellular alarms before a collapse occurs.
FAQ Section
Q1: What is the primary difference between the EWM108-GN06B and EWM108-GN06BS modules?
A1: Both modules utilize the same core high-precision, multi-frequency BDS-only navigation engine and provide identical centimeter-level positioning capabilities. The primary difference lies in their physical pin layouts and package form factors. The "S" designation in EWM108-GN06BS represents a modified physical footprint designed to fit tighter, space-constrained PCB layouts typical in compact wearable tech or micro-drones.
Q2: Why does these modules only track the BeiDou (BDS) satellite constellation?
A2: By dedicating 100 percent of the internal hardware correlators and processing power strictly to the BeiDou (BDS) constellation's extensive multi-frequency bands (B1I, B1C, B2I, B3I, B2a, B2b), these modules bypass the processing overhead of trying to track multiple fragmented systems. This specialized focus ensures faster time-to-first-fix (TTFF) and highly reliable RTK centimeter positioning, particularly in regions with dense BeiDou satellite density.
Q3: What external hardware is required to achieve centimeter-level accuracy?
A3: To achieve true centimeter-level RTK positioning, the EWM108-GN06B/GN06BS modules must be connected to a high-quality multi-frequency GNSS antenna that supports the BDS bands, and they must receive real-time differential RTCM correction data streams (such as NTRIP RTK corrections) from a local base station or CORS network via an external MCU or wireless modem.
Q4: Are the serial communications outputted by the modules compatible with standard microcontrollers?
A4: Yes. Both modules utilize standard 3.3V UART (TTL) interfaces to transmit standard NMEA-0183 proprietary positioning sentences and coordinate data. They can be connected directly to popular 3.3V microcontrollers, RTK processors, or industrial PCs. If interfacing with legacy 5V MCUs, a standard bidirectional level shifter must be used to protect the module's IO pins.
