Unicore UM982: High-Precision RTK Positioning & Dual-Antenna Heading Module
Full performance overview – cm-level RTK, dual-antenna heading, 1408 channels, and full-constellation support for drones, autonomous machines, and precision agriculture.
Overview
The UM982 is a self-developed, full-system, full-frequency high-precision positioning and heading module from Unicore Communications. It supports BDS, GPS, GLONASS, Galileo, QZSS, and SBAS. The module is built on Unicore's NebulasIV RF baseband and high-precision algorithm integrated GNSS SoC chip.
Both primary and secondary antennas simultaneously track full-constellation, full-frequency signals (including BeiDou-3 global signals), enabling on-chip RTK positioning and dual-antenna heading solutions. An integrated advanced anti-jamming unit ensures reliable and accurate positioning even in complex electromagnetic environments.
Applications
The UM982 is designed for high-precision navigation and positioning applications including:
- Drones & UAVs
- Autonomous robots
- Precision agriculture
- Autonomous driving / intelligent vehicles
Key Features
- Based on the latest-generation NebulasIV RF baseband and high-precision algorithm integrated GNSS SoC chip
- Full-system, full-frequency on-chip RTK positioning and dual-antenna heading solution
- Dual-RTK engine technology
- 60 dB narrowband anti-jamming technology and advanced interference detection
- Automatic RTCM format differential input recognition
- STANDALONE single-station high-precision positioning support
- B2b-PPP and E6-HAS support
Channels & Signals
| Parameter | Specification |
|---|---|
| Channels | 1408 channels (based on NebulasIV) |
| Supported Signals |
BDS: B1I, B2I, B3I, B1C*, B2b* GPS: L1C/A, L2C, L2P(Y), L5 GLONASS: G1, G2 Galileo: E1, E5a, E5b, E6* QZSS: L1C/A, L2C, L5 SBAS: L1C/A |
* Supported in specific firmware versions. Check Unicore official documentation for updates.
Positioning Accuracy (RMS)
| Mode | Horizontal | Vertical |
|---|---|---|
| Standalone | 1.5 m | 2.5 m |
| DGPS | 0.4 m | 0.8 m |
| RTK | 0.8 cm + 1 ppm | 1.5 cm + 1 ppm |
| PPP | 5 cm | 10 cm |
Observation Accuracy (RMS)
| Signal / Type | BDS | GPS | GLONASS | Galileo |
|---|---|---|---|---|
| B1I/B1C/L1 C/A/E1/G1 Pseudorange | 10 cm | 10 cm | 10 cm | 10 cm |
| B1I/B1C/L1 C/A/E1/G1 Carrier Phase | 1 mm | 1 mm | 1 mm | 1 mm |
| B2I/G2/L2P(Y)/L2C/E5b Pseudorange | 10 cm | 10 cm | 10 cm | 10 cm |
| B2I/B2a/B2b/L5/E5a/E5b Carrier Phase | 1 mm | 1 mm | 1 mm | 1 mm |
| B3I/L5/E5a/B2a Pseudorange | 10 cm | 10 cm | 10 cm | 10 cm |
| B3I/L5/E5a/B2a Carrier Phase | 1 mm | 1 mm | 1 mm | 1 mm |
Performance Specifications
20 Hz raw data output
Physical Characteristics
Functional Interfaces
- 3 × UART (LVTTL)
- 1 × I2C*
- 1 × CAN* (shared with UART3)
* Supported in specific firmware versions. Check Unicore official documentation for details.
Get Full Set of Materials
3D Model Source / DataSheet / Firmware Update / UPrecise：https://github.com/YanTechHub/NavCore-UM982-RTK-GNSS-Board