WitMotion Unicore UM982 UM980 Dual RTK GNSS Module High Precision Centimeter GPS BDS GLONASS Positioning Sensor Board
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WTRTK-DT Series High-Precision RTK GNSS Module
The WTRTK-DT series is a high-performance RTK GNSS module powered by the Unicore NebulasIV SoC, featuring 1408 channels for multi-constellation tracking. It delivers cm-level RTK positioning and stable dual-antenna heading. Available in three models: WTRTK-982DT (0.1° heading), WTRTK-980DT (50Hz high-dynamic), and WTRTK-960DT (20Hz stable). Upgraded with a metallic ESD shield for robust anti-interference and GH1.25 locking connectors for secure integration, it is the ideal solution for UAV navigation, autonomous robots, precision agriculture, and smart vehicles. Reliable performance guaranteed for harsh engineering environments.
Centimeter-Level RTK Accuracy
Horizontal 0.8cm + 1ppm, vertical 1.5cm + 1ppm. High-frequency 20Hz output ensures RTK FIX for precise, drift-free trajectory tracking.
Integrated GNSS SoC Technology
Next-gen RF baseband and high-precision algorithm integrated chip. High performance, robust anti-interference, and accurate positioning.
Optimized Antenna Impedance
Professional 50Ω RF chain, VSWR <1.78, and excellent return loss. Ensures maximum signal integrity and minimal reflection.
Superior Satellite Acquisition
π-type matching network ensures strong, stable signal search. Built-in antenna detection circuit guarantees robust tracking performance.
Multi-Constellation Positioning
1408 channels with high sensitivity. Full support for BDS, GPS, GLONASS, Galileo, and QZSS combined navigation.
Intuitive Monitoring Software
User-friendly host software offering real-time satellite visualization, map positioning, and data recording management.
Ultra-Fast RTK Convergence
Fast satellite acquisition achieves RTK FIX in <10s. Supports up to 50Hz refresh rate (980DT), perfect for high-dynamic UAVs.
Advanced Anti-Jamming Capability
Built-in advanced anti-jamming unit suppresses multipath, narrowband, and wideband interference, ensuring accurate RTK in complex electromagnetic environments.
Flexible Connection Modes
Offers three easy setups: dual SMA antennas for heading, secure GH1.25 locking cables for system integration, and Type-C for plug-and-play PC testing.
Standard UART & PPS Pins
12-pin interface providing dual UART communication and PPS (Pulse Per Second) output for high-precision time synchronization, making embedded wiring simple and reliable.
Dual SMA External Antenna Ports
Features independent Master/Slave antenna inputs. Metal screw-lock ensures stable, anti-vibration connections, delivering reliable RF signal for RTK positioning and dual-antenna heading.
Upgraded ESD Protection Shield
New metallic shielding reinforces core circuit protection, improves anti-static capability, and enhances structural stability for reliable engineering applications.
Ultra-Compact Size
36*41*7.6mm footprint, reducing size by 50% compared to traditional RTK modules. Perfect for space-constrained drones, robots, and precision agriculture equipment.
Application Scenarios
01 Agricultural Auto-Steering
Empowers tractors, seeders, and sprayers with precise lane-keeping and automatic steering. The RTK module ensures efficient crop production by minimizing seed and chemical overlap across vast fields.
03 UAV Aerial Surveying & Mapping
Provides real-time precise georeferencing for UAV flight control. Accelerates aerial photogrammetry missions and drone mapping workflows by enabling reliable, high-accuracy 3D terrain modeling.
04 Construction Machinery & Machine Control
Offers real-time machine control and positioning for excavators, dozers, and graders. Enables accurate earthmoving, automated grading, and fleet management to significantly boost site construction productivity.
05 Surveying, Staking & Engineering Layout
Facilitates fast high-precision stakeout and coordinate collection for roads, bridges, and pipelines. Ensures site layout strictly adheres to engineering design standards with rapid point verification.
06 Vehicle Mobile Mapping Systems
Serves as the core positioning sensor for street mapping. Enables detailed trajectory recording, precise spatial data acquisition, and smart city geographic information system (GIS) updates.
07 Unmanned Surface Vessel (USV) Surveying
Ensures stable centimeter-level positioning and course control for unmanned surface vessels (USVs). Perfect for accurate bathymetric mapping, waterway measurement, and efficient water resource management.