OneRTK UM982 high-precision positioning and orientation module
Overview
The OneRTK UM982 is a new-generation, full-system, full-frequency, high-precision positioning and orientation module, primarily targeted at applications such as drones, precision agriculture, and intelligent driver testing. It supports on-chip RTK positioning and dual-antenna orientation solutions for the entire system and frequency range, and can be used as an RTK rover or base station. It supports both multi-satellite system joint positioning and single-system independent positioning modes, allowing for flexible user configuration.
Main Features
-
Dual-RTK dual RTK engine technology
- Dual antenna input to achieve high-precision orientation and adapt to complex and strong magnetic environments
- Adaptive recognition of differential input RTCM format
- Supports full-system, full-frequency on-chip RTK positioning and dual-antenna directional solution
-
BDS B1I/B2I/B3I + GPS L1/L2/L5 + GLONASS L1/L2 + Galileo E1/E5a/E5b + QZSS L1/L2/L5 + SBAS
Interface definition and dimensions
Indicator lamp definition
PWR: Lights up steadily when powered on. Off indicates a voltage abnormality.
SYS: Off indicates the system is not booted. A steady yellow light indicates normal bootup.
CAN: Flashes green twice when no communication is active. Flashes once per second when communication is normal.
RTK: Off when no RTCM data is received. Lights up steadily in blue when RTCM data is received.
PVT: Lights up steadily when satellite search and positioning are normal. Off when no satellite signal is received.
ERR: Off when no fault is detected. Flashes red when a fault is detected.
OneRTK UM982 Specifications
| Item | Specifications |
| Processor | STM32G474 |
| Positioning module | UM982 |
| Positioning system | BDS/GPS/GLONASS/Galileo/QZSS |
| Main antenna frequency | BDS: B1I、B2I、B3I GPS: L1C/A、L2P (Y)/L2C、L5 GLONASS: G1、G2 Galileo: E1、E5a、E5b QZSS: L1、L2、L5 |
| From the antenna frequency | BDS: B1I、B2I、B3I GPS: L1C/A、L2C GLONASS: G1、G2 Galileo: E1、E5b QZSS: L1、L2 |
| Positioning accuracy | Point Positioning (RMS): Horizontal: 1.5m, Elevation: 2.5m DGPS (RMS): Horizontal: 0.4m + 1ppm, Elevation: 0.8m + 1ppm RTK (RMS): Horizontal: 0.8cm + 1ppm, Elevation: 1.5cm + 1ppm |
| Directional accuracy (RMS) | 0.2°/1 m baseline |
| Maximum satellite search capability | GPS：28+ RTK:50+ |
| Positioning speed | Cold start <30s Assisted start <5s |
| Speed accuracy | 0.03m/s |
| Data refresh rate | 5Hz (default); maximum 20Hz |
| Differential data format | RTCM3.x |
| Communication Protocol | DroneCAN/NMEA-0183, Unicore |
| Interface | Antenna interface × 2 CAN interface × 2 UART × 1 Type-C × 1 |
| Antenna gain | 32±2dB |
| Operating voltage | 4.7~5.3V |
| Operating temperature | -20~85℃ |
| Weight | Main body 23.8g, each cylindrical antenna 15g |
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