T-RTK-UM982

Product Introduction

​T-RTK UM982: Cost-Effective Centimeter-Level Positioning Solution​​.

This module features a modular, stackable design that integrates mobile station, base station, 4G, and radio functionalities. It includes a built-in magnetic compass, Wi-Fi hotspot, and supports single/dual antenna configurations for applications like drones, unmanned vehicles, and surveyingPowered by the UM982 all-system, all-frequency chip, it achieves a cold start in <30s, hot start in <4s, and provides a 20Hz update rate, supporting BeiDou, GPS, and other global satellite systems.It offers versatile interfaces (USB-C, UART, flight controller port) for direct connection to Pixhawk flight controllers and compatibility with embedded devices. Drivers for ROS, Python, and C++ facilitate access to position, velocity, and heading data.An optional all-in-one base station version provides up to 8 hours of battery life for portable, plug-and-play operation.

 

Product Features

Full-Star Full-Frequency

Centimeter-level positioning

Multi-platform compatibility

Multi-mode communication

Built-in WiFi

Modular design

Multi-antenna interface

Built-in magnetic compass

Expanded Communication Interfaces

Anti-magnetic interference

Support ROS

Secondary development

All-Satellite All-Frequency, Worry-Free Signal​

Supports global navigation systems such as BDS/GPS, with multi-frequency signal reception, enabling rapid signal acquisition even in complex environments to ensure stable operation.

Centimeter-Level Accuracy, Precision Guaranteed​

Utilizes Real-Time Kinematic (RTK) technology to deliver real-time centimeter-level positioning accuracy, meeting stringent requirements for professional applications like surveying and construction layout.

Multi-Platform Compatibility, Broad Applicability​

Designed for flexible integration with diverse equipment including drones and unmanned vehicles, adapting to varied high-precision positioning needs across industries.

Multi-Mode Communication, Flexible and Efficient​

Supports self-established base stations or connection to CORS networks, with configurable communication modules (e.g., 4G, radio) to ensure robust and adaptable differential data links.

Cumulative sales surpass 10,000 units, shipped to over 50 countries worldwide

All-Satellite All-Frequency, Centimeter-Level Accuracy

Powered by the high-performance UM982 chip, it supports all major satellite systems and full-frequency signals, delivering data at a high update rate of 20Hz.Horizontal Accuracy​: 0.8 cm + 1 ppm,Vertical Accuracy​: 1.5 cm + 1 ppm

BDS、GPS、GLONASS、Galileo、QZSS、SBAS
BDS、GPS、GLONASS、Galileo、QZSS、SBAS
Horizontal accuracy: 0.8 cm + 1 ppm Elevation accuracy: 1.5 cm + 1 ppm
Horizontal accuracy: 0.8 cm + 1 ppm Elevation accuracy: 1.5 cm + 1 ppm
Robust anti-interference design ensures stable performance even in complex electromagnetic environments.
Robust anti-interference design ensures stable performance even in complex electromagnetic environments.
Dual-antenna independent processing with cross-verification significantly enhances reliability.
Dual-antenna independent processing with cross-verification significantly enhances reliability.
Maintains positioning continuity even when the differential link is interrupted.
Maintains positioning continuity even when the differential link is interrupted.
Equipped with a built-in uninterruptible power supply system, enabling rapid entry into RTK mode even after a 2-4 hour power outage.
Equipped with a built-in uninterruptible power supply system, enabling rapid entry into RTK mode even after a 2-4 hour power outage.

Multi-Platform Compatibility

Native support for diverse application scenarios including drones, autonomous vehicles, robots, agricultural machinery, surveying and mapping, and environments with or without CORS services.

多平台 (1)
UAV
多平台 (4)
Autonomous vehicles
多平台 (3)
Agricultural machinery
多平台 (2)
Surveying equipment

Selection Recommendations

Modular Design

Features a stackable, modular design incorporating mobile units, base station units, 4G communication modules, 5-kilometer radio modules, Wi-Fi hotspots, and other components.

Modular Design

Features a stackable, modular design incorporating mobile units, base station units, 4G communication modules, 5-kilometer radio modules, Wi-Fi hotspots, and other components.

Extensive Interface Configuration

Integrated Type-C (combined power delivery/debugging/communication), dual serial ports (4-pin basic communication + 7-pin flight controller interface), PPS precision timing, and I²C direct connection to magnetic compass.

Multiple Communication Methods

Supports direct connection to CORS via 4G modules, radio ad hoc networking, and Python API integration with CORS, offering flexible adaptation to diverse scenarios.

 

Built-in Magnetic Compass

Features an integrated IST8310 magnetometer chip that connects directly to Pixhawk drone flight controllers, enabling high-precision positioning and heading measurement.

WiFi Hotspot Networking

The base station incorporates a built-in WiFi hotspot for wireless connectivity, enabling UDP-based sharing of RTCM differential data packets.Multiple Mission Planner or QGC ground stations can be paired with remote controllers to achieve drone swarm positioning.

Flexible single/dual antenna switching

Flexible switching between SMA single-antenna direct plug and MMCX dual-antenna connectors.

Secondary Development

Provides ROS, Python, and C++ drivers for easy access to data such as latitude, longitude, altitude, velocity, and heading, enabling rapid secondary development.

Integrated Base Station

Optional integrated base station combines the base unit, battery, mushroom-head antenna, and tripod into one compact unit. Offers 8 hours of battery life, lightweight and portable, ready to use right out of the box.

Integrated Base Station

Optional integrated base station combines the base unit, battery, mushroom-head antenna, and tripod into one compact unit. Offers 8 hours of battery life, lightweight and portable, ready to use right out of the box.

行业 (4)
Intelligent Drones
行业 (2)
Intelligent Autonomous Vehicles
行业 (5)
Engineering Construction
行业 (3)
Smart Transportation
行业 (1)
Smart Agriculture
行业 (6)
Topographic Surveying

Interface and Wire Sequence

Fastening method

Technical Parameter

ParameterModelMobile EndBase Station EndIntegrated Base Station (T-RTK UM982 OneBase)
​​Positioning Module​​ModelUM982UM982UM982
Basic informationChannels1408 channels, based on NebulasIV
Antenna InterfaceMMCX2, SMA1SMA*1
ModesBDS 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, L6
SBAS L1C/A
Main Antenna FrequenciesBDS: B1I, B2I, B3I
GPS: L1C/A, L2P (Y)/L2C, L5
GLONASS: G1, G2
Galileo: E1, E5a, E5b
QZSS: L1, L2, L5
Secondary Antenna FrequenciesBDS: B1I, B2I, B3I
GPS: L1C/A, L2C
GLONASS: G1, G2
Galileo: E1, E5b
QZSS: L1, L2
​​Performance Metrics​​RTK (RMS)Horizontal: 0.8cm + 1ppm
Vertical: 1.5cm + 1ppm
Single Point (RMS)Horizontal: 1.5m
Vertical: 2.5m
DGPS (RMS)Horizontal: 0.4m + 1ppm
Vertical: 0.8m + 1ppm
PPP (RMS)Horizontal: 5cm
Vertical: 10cm
Heading Accuracy (RMS)0.1° / 1m baseline
PPS Accuracy (RMS)20 ns
Velocity Accuracy (RMS)0.03 m/s
Cold Start Time<30 s
Warm Start Time< 4 s
Initialization Time<5s (typical)
Initialization Reliability> 99.9%
Data Update RateDefault: 2Hz, Max: 20Hz
Positioning/Heading: 20Hz, Raw Measurements: 20Hz
Differential Data FormatRTCM 3.X
Data FormatNMEA-0183, Unicore
Baud Rate4800bps~921600bps (Default: 115200bps)
​​Magnetometer​​ModelIST8310
Measurement Range±1600 μT (X, Y-axis), ±2500 μT (Z-axis)
Offset Temp. Drift0.024 μT/°C
​​Physical​​Dimensions39mm×39mm×12.5mm39mm×39mm×22.1mm147mm×82mm×36mm
Weight34g (excl. antenna)52g (excl. antenna)386g
​​Electrical​​Voltage5V5V5V
Power Consumption1300mW2000mW2888mW
Runtime––9h
​​Environment (RTK Chip)​​Operating Temperature-40℃ ~ +85℃
Storage Temperature-55℃ ~ +95℃
Humidity95% non-condensing
VibrationGJB150.16-2009, MIL-STD-810F
ShockGJB150.18-2009, MIL-STD-810F
​​Communication Interface​​I2C1 x I2C (shared with 7Pin UART)
USB1 x USB
UART1 x 4Pin UART, 1 x 7Pin UART1 x 7Pin UART
 
​​Integrated Base Station​​Tripod HeightMax 1.80m
External Power PortXT30 x 1 (12V)
Antenna InterfaceSMA only
Voltage DisplaySupported
​​4G Module​​Network Standard4G All-netcom (supports China Mobile/Unicom/Telecom)
Dimensions39mm39mm14.5mm (excl. antenna)
Weight49g (incl. antenna)
Operating Voltage5V (directly powered by RTK)
Power Consumption<0.3W
​​Radio Module​​Networking ModePeer-to-multipeer, star network
Max Network NodesTheoretical max: 100
Frequency Band410~525MHz
Max TX Power22±0.5dBm@470MHz
Transmission RateMax: 0.268Kbps
Communication RangeMax: 5km (air-to-air)
Dimensions39mm39mm14.5mm (excl. antenna)
Weight49g (incl. antenna)
Operating Voltage5V (directly powered by RTK)
Power Consumption<0.4W
​​Quadrifilar Helix Antenna​​Operating ModesGPS L1, L2, L5
BDS B1, B2, B3
GLONASS L1, L2, L3
Galileo E1, E5a, E5b, E6
SBAS L1, L5
QZSS L1, L2, L5, L6
IRNSS L5
Gain32±2dB
InterfaceSMA-J
DimensionsΦ27.3 * 58.6mm
Weight16g
​​Mushroom Antenna​​Operating ModesGPS L1, L2, L5
BDS B1I, B2I, B3I, B1C, B2a, B2b
GLONASS L1, L2, L3
Galileo E1, E5a, E5b, E6
SBAS L1, L5
QZSS L1, L2, L5, L6
IRNSS L5, L-Band
Gain38±2dB
InterfaceTNC-K
DimensionsΦ154 * 64.2mm
Weight280g
​​Quadrifilar Antenna Bracket​​DimensionsHeight ~11.7cm
Weight16g (incl. feeder cable)

Product size

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T-RTK UM982

Modular Centimeter-Level Satellite Positioning Module

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