UM980 GNSS/GPS/RTK Board Module Low Power Consumption Centimeter-Level Accuracy Pixhawk Compatible

丨 Product Introduction


Advanced positioning technology: Based on the UM980 series, it supports full frequency RTK and dual antennas, ensuring stable and accurate positioning in harsh environments.

Strong compatibility with multiple systems: capable of receiving signals from multiple satellite systems such as Beidou, expanding coverage and improving accuracy.

Efficient positioning calculation: Four mode joint RTK calculation, fast positioning initialization, and both speed and accuracy.

Excellent data output and scene adaptation: 20Hz data output rate, suitable for dynamic scenes such as drones, and can also be configured with base stations or roamers as needed.




丨 Specification parameters




丨 product mix

                                                           Table 1 PIN Functionality

 

                                                        Table 2 Interface Characteristics

Packaging and Delivery：

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DALANG AK391W High-Precision RTK Positioning Module

Cost-Effective, Low-Power, High-Precision GNSS Engine
The DALANG AK391W module is a low-cost, low-power, high-performance RTK positioning module based on the UM980 chip, delivering real-time centimeter-level accuracy. Utilizing a full-frequency RTK engine, it is suitable for UAVs, automotive, and surveying applications. The module can be configured as either a rover or a base station, using carrier phase differential technology to minimize errors and achieve high-precision positioning.

Full-Frequency RTK Engine for Real-Time Positioning
With its full-frequency RTK engine, the AK391W provides stable and reliable positioning data across various applications. Whether acting as a rover or base station, this module ensures accurate location information for demanding workflows.

Designed for Open-Source Flight Controllers and Integrators
Fully compatible with open-source flight control systems like Pixhawk and APM, the AK391W module supports flexible deployment. It is the ideal choice for UAV developers and system integrators seeking a stable, cost-effective RTK receiver module.

Reliability in Harsh Environments
Featuring an industrial-grade low-noise RF circuit design, the AK391W performs excellently in challenging environments such as urban, mountainous, or foliage-covered areas, ensuring stable GNSS output under real-world conditions.

Product Advantages

• UM980 Chip-based with Full-System, Full-Frequency Support
  Leveraging the UM980 chip, the module supports multi-system, multi-frequency signals including BDS, GPS, GLONASS, Galileo, QZSS, and SBAS, enabling real-time centimeter-level positioning.
  
  

• Dual-Mode Flexible Configuration
  Operates as either a base station or rover, offering ultimate application flexibility to meet diverse scenario needs.
  
  

• High Compatibility and Integration
  Fully compatible with mainstream open-source flight control systems, making it one of the most versatile RTK modules on the market.
  
  

• High Performance, Low Power, Compact Size
  The AK391W boasts a compact design (65.9*45*3.6mm) and power consumption below 800mW, making it ideal for drones or AGV systems.
  
  
  

Need a Reliable Positioning Solution?
Upgrade your high-precision positioning projects cost-effectively – choose the DALANG AK391W GNSS module based on the UM980 chip today.

About Us

DALANG is a dedicated manufacturer of high-performance GNSS modules and RTK positioning solutions, serving industries such as UAV navigation, precision agriculture, and geospatial mapping. With a clear focus on accuracy, reliability, and integration flexibility, we support both standard and custom applications across global markets. Our product lines are engineered to meet the evolving demands of real-time positioning with support for multiple GNSS constellations, including GPS, GLONASS, BDS, and Galileo.

Our production facility spans 2,500㎡ and includes advanced SMT lines, in-house R&D labs, and full functional testing for every unit shipped. With a team of 30+ GNSS engineers, we design and manufacture over 200,000 GNSS receivers and modules annually. Certified to ISO9001:2015, and compliant with CE and RoHS standards, we follow a strict quality assurance process from prototyping through mass production. We also provide firmware updates, system integration support, and full lifecycle product documentation.

Trusted by partners in over 30 countries, DALANG delivers fast, scalable manufacturing with personalized technical support. Our streamlined collaboration model—covering inquiry, consultation, prototyping, and delivery—ensures efficiency from first contact to deployment. Whether you're sourcing off-the-shelf GNSS hardware or launching a customized solution, DALANG is your dependable partner for accurate, cost-effective positioning systems.


FAQ

1. Who are we?
We are DALANG, a specialized manufacturer of GNSS modules and RTK positioning systems based in China, with a focus on high-precision solutions for UAVs, surveying, and smart agriculture.

2. How can we guarantee quality?
All products undergo strict multi-stage quality control, including SMT production, functional testing, and 100% final inspection. We are ISO9001:2015 certified and follow international compliance standards such as CE and RoHS.

3. What can you buy from us?
You can purchase GNSS receivers, RTK modules, base stations, antennas, flight control positioning systems, and other GNSS-related components and accessories.

4. Why should you buy from us not from other suppliers?
We combine strong in-house R&D, flexible OEM/ODM support, industrial-grade quality assurance, and fast global delivery. Our expertise in GNSS RTK ensures stable, accurate, and scalable solutions tailored to your specific use case.

5. What services can we provide?
We offer OEM/ODM customization, technical consulting, firmware support, prototyping, and global after-sales service. Our team works closely with international clients to ensure efficient communication and long-term support.