Overview of GNSS Single Beidou and Terminal Series

EBYTE's original EWD108-GN03/04/05 terminal product matrix is renowned for supporting multi-system joint positioning (BDS/GPS/GLONASS/GALILEO, etc.), aiming to provide users with optimal positioning availability and accuracy worldwide. However, with the full networking and mature application of the BeiDou Navigation Satellite System (BDS), many domestic industries with strict requirements for data sovereignty and system autonomy, such as power timing, communication synchronization, precision agriculture, land surveying and mapping, and national security-related equipment, have clearly demanded Beidou-only positioning terminals.

The newly launched EWD108-GN06B and EWD108-GN03B series are precise responses to this strategic demand:

  • EWD108-GN06B Series: Positioned for high-precision Beidou-only applications. Based on a new-generation high-performance Beidou-only chip, it achieves a horizontal positioning accuracy of 1.0 meter (CEP50) and a timing accuracy of better than 10ns. Its performance indicators benchmark against high-end multi-system models, specifically designed for professional fields with stringent requirements for accuracy and timing.

  • EWD108-GN03B Series: Positioned for cost-effective Beidou-only applications. While ensuring a reliable positioning accuracy of 2.5 meters (CEP50), it offers highly competitive cost advantages, suitable for large-scale IoT deployment scenarios sensitive to cost, such as vehicle monitoring, asset tracking, and smart municipal management.

Detailed Explanation of the New Product Matrix
To meet the needs of different on-site environments and system integration, both new series provide complete communication interface options, forming a clear "Performance-Interface" matrix:

  1. EWD108-GN06B Series: High-precision Flagship Model

    • EWD108-GN06B(TTL): Provides a 3.3V level UART interface, facilitating direct integration with various microcontrollers and embedded motherboards.

    • EWD108-GN06B(232): Offers a standard RS232 interface, enabling direct connection to industrial computers, IPCs, and legacy serial devices.

    • EWD108-GN06B(485): Features an RS485 interface, supporting long-distance communication and multi-device networking, making it an ideal choice for industrial fieldbus applications.

    • Core Positioning: Localization, high precision, high reliability.

    • Supported Systems: Beidou-only (BDS), compatible with BDS-2 and BDS-3 signals.

    • Key Performance: Horizontal accuracy of 1.0 meter (CEP50), timing accuracy of 10ns, cold start time of approximately 23 seconds.

    • Interface Models:

  2. EWD108-GN03B Series: Cost-effective Popular Model

    • EWD108-GN03B(TTL): UART level interface, suitable for embedded integration.

    • EWD108-GN03B(232): RS232 interface, compatible with standard serial devices.

    • EWD108-GN03B(485): RS485 interface, ideal for distributed and networked deployments.

    • Core Positioning: Cost optimization, high stability, wide coverage.

    • Supported Systems: Beidou-only (BDS).

    • Key Performance: Horizontal accuracy of 2.5 meters (CEP50), timing accuracy of 30ns, cold start time of approximately 23 seconds.

    • Interface Models:

Inherited Technical Features
All models inherit the iconic industrial-grade quality of the EWD108 series:

  • Standard Modbus RTU Protocol: Greatly simplifies integration with PLC, SCADA, HMI, and various upper-level software.

  • Flexible Configuration: Supports adjustable baud rates from 1200-115200bps, allowing online configuration of positioning update rates, antenna types, and other parameters via Modbus registers.

  • Industrial-grade Design: Wide voltage input (DC 5-24V), operating temperature range of -40°C ~ +85°C, suitable for harsh outdoor and industrial environments.

  • Easy Installation: Supports rail-mounted and mounting hole installation, facilitating cabinet integration.

  • Status Indication: Real-time viewing of positioning status and antenna health through indicator lights and registers.

Application Scenarios: Empowering Localization and Specialization
The launch of these two new series marks the extension of EBYTE's GNSS product line from "general-purpose connectivity" to "specialized empowerment":

  • Power and Communication Timing: With its 10ns-level high-precision timing capability, the EWD108-GN06B is perfectly suited for applications such as synchronized phasor measurement in smart grids and time synchronization in 5G base stations, enabling a time reference fully based on the Beidou system.

  • Precision Agriculture and Surveying: In land surveys and refined farmland management, using Beidou-only terminals ensures the autonomy, controllability, and security of data sources while meeting necessary accuracy requirements.

  • Special Vehicles and Asset Management: For vehicle monitoring and important asset tracking in government departments and enterprises, the EWD108-GN03B series provides an economically reliable solution that meets localization requirements.

  • Smart Cities and Infrastructure Monitoring: In IoT applications such as bridge deformation monitoring and geological disaster monitoring, terminals with RS485 interfaces can easily form long-distance, multi-node reliable positioning networks.


The release of EBYTE's EWD108-GN06B and GN03B series is not only an important complement to its GNSS product portfolio but also a significant practice in actively responding to the national Beidou industrialization strategy and promoting the autonomy and controllability of core technologies in key fields. By offering a full range of options from high-precision to cost-effective models, and from TTL to RS485 interfaces, EBYTE enables industry users to more freely and precisely select the most suitable Beidou-only positioning terminals based on their project's performance requirements, cost budgets, and system architectures.

Whether building the next-generation power synchronization network or deploying large-scale localized asset tracking systems, EBYTE's new product matrix provides a solid, reliable, and future-oriented positioning foundation. Choosing EBYTE means not only selecting high-quality hardware but also partnering with a long-term collaborator that deeply understands industry needs and continuously drives technological localization.