

Swegeo GD-982
Dual Antenna GNSS Receiver Board
Key Feature
The GD-982 board from Swegeo utilizes Unicore’s new-generation proprietary high-precision positioning and heading module, designed to perform on-chip RTK positioning and dual-antenna heading. The built-in advanced anti-interference unit ensures reliable and accurate positioning data even in complex electromagnetic environments, making the GD-982 an ideal choice for high-precision applications such as UAVs, autonomous machines, and precision agriculture.
Based on the New Generation GNSS SoC – NebulasIV
The GD-982 integrates the latest RF, baseband, and high-precision algorithms into a single, powerful SoC, ensuring exceptional performance and reliability.
Supports All-Constellation Multi-Frequency On-Chip RTK Positioning and Dual-Antenna Heading Solution
Enjoy comprehensive support for all GNSS constellations and multi-frequency signals, providing unparalleled accuracy and robustness in real-time kinematic positioning and dual-antenna heading applications.
Dual-RTK Technology
Leverage the power of dual-RTK technology to achieve even greater accuracy and reliability in challenging environments, ensuring precise positioning and orientation.
60 dB Narrowband Interference Suppression and Interference Detection
With advanced narrowband interference suppression and detection capabilities, the GD-982 maintains signal integrity and performance even in the presence of significant interference
Adaptive Recognition of RTCM Format Differential Data
The GD-982 can automatically recognize and adapt to various RTCM format differential data, ensuring seamless integration and compatibility with a wide range of applications.
STANDALONE Single-Station High-Precision Positioning Technology
Achieve high-precision positioning with a single station setup, making the GD-982 ideal for applications where simplicity and accuracy are paramount.
Supports B2b-PPP and E6-HAS
The GD-982 includes support for B2b-PPP and E6-HAS, providing additional layers of accuracy and reliability for high-precision applications.
UAV Autopilots & Robotics Integration:
The GD-982 board is a compact OEM module that system integrators embed into drones and autonomous robots requiring both precise positioning and heading. UAV designers use this dual-antenna board to give their drones real-time RTK positioning and orientation for tasks like aerial surveying or cargo delivery. Upon power-up, a drone’s autopilot can immediately get its heading from the dual antennas, which shortens initialization time and improves flight alignment for missions. The board’s advanced anti-interference features also make it dependable in electrically noisy platforms like robots with onboard radios or motors.
Precision Agriculture Machinery:
Companies developing precision agriculture systems incorporate the GD-982 into farm equipment guidance systems. For example, an autonomous tractor or crop sprayer can benefit from the board’s centimeter-level accuracy and dual-antenna heading to maintain perfectly straight paths across fields. Even on rolling terrain or when starting from a standstill, the vehicle knows its orientation, ensuring that rows are planted and tended without overlap or gaps. The board’s robust design handles the vibration and electrical interference common in heavy machinery, providing stable operation throughout long farming days.
Marine and Survey Equipment Manufacturing:
The GD-982 is ideal for marine navigation units and survey instrument builders who need a high-precision engine inside their products. A survey equipment manufacturer might use this board to power a new dual-antenna RTK receiver for land or marine surveys, offering end-users reliable performance even in challenging conditions. Marine integrators could install the board in a vessel’s navigation system so that the boat can determine its heading (via dual antennas on the bow and stern) along with position, improving autopilot accuracy for harbor entry, channel following, or formation movement of multiple ships.
Feature | Specification | Feature | Specification |
---|---|---|---|
Signal Support |
GPS: L1C/A, L2C, L2P(Y), L5 BDS: B1I, B2I, B3I, B1C*, B2b* GLONASS: G1, G2 Galileo: E1, E5a, E5b, E6* QZSS: L1C/A, L2C, L5 SBAS: L1C/A |
Channels | 1408 Channels |
Single Point Positioning Accuracy (RMS) | Horizontal: 1.5 m Vertical: 2.5 m |
DGPS Accuracy (RMS) | Horizontal: 0.4 m Vertical: 0.8 m |
RTK Accuracy (RMS) | Horizontal: 0.8 cm + 1 ppm Vertical: 1.5 cm + 1 ppm |
Heading Accuracy | 0.1° / 1 m baseline |
Data Update Rate | Dual antenna: 20 Hz (RTK + Heading) | Time Accuracy | 20 ns |
Velocity Accuracy (RMS) | 0.03 m/s | Initialization Time | <5 s (typical) |
Initialization Reliability | >99.9% | Time to First Fix | Cold Start: <30 s |
Dimensions | 71.1 × 45.7 × 1.62 mm | Weight | 644 g |
Input Voltage | 3.3 V DC | Connectors |
RS232 × 2 USB × 1 Bluetooth (Long Range SPP) |
Working Temperature | -40°C to +85°C | Storage Temperature | -55°C to +95°C |
Humidity | 95% Non-condensing | Vibration / Shock | GJB150.16A-2009, MIL-STD-810F / GJB150.18A-2009, MIL-STD-810F |


Swegeo GD-982
Dual Antenna GNSS/INS Receiver Board
Key Feature
The Swegeo GD21D-INS board is designed to deliver high-precision navigation capabilities in a compact form factor. It features advanced anti-jamming technology with 65 dBc narrowband suppression and high-performance RTK for reliable positioning. The board offers a deeply-coupled combined navigation solution to address challenges such as satellite signal interference and multipath effects. It provides continuous, real-time, and accurate position and attitude information, making it ideal for applications including automated driving, drones, precision agriculture, surveying, and mapping.
OVERVIEW
Multi-Constellation GNSS Support
Provides reliable and robust signal reception from GPS, GLONASS, Galileo, and
BeiDou systems, ensuring comprehensive coverage and improved accuracy.
Dual Antenna Configuration
Enhances positioning accuracy and performance, particularly in challenging
environments, by using two antennas to better mitigate signal obstructions and
multipath effects.
USE CASES
UAV Autopilots & Robotics Integration:
The GD-982 board is a compact OEM module that system integrators embed into drones and autonomous robots requiring both precise positioning and heading. UAV designers use this dual-antenna board to give their drones real-time RTK positioning and orientation for tasks like aerial surveying or cargo delivery. Upon power-up, a drone’s autopilot can immediately get its heading from the dual antennas, which shortens initialization time and improves flight alignment for missions. The board’s advanced anti-interference features also make it dependable in electrically noisy platforms like robots with onboard radios or motors.
Precision Agriculture Machinery:
Companies developing precision agriculture systems incorporate the GD-982 into farm equipment guidance systems. For example, an autonomous tractor or crop sprayer can benefit from the board’s centimeter-level accuracy and dual-antenna heading to maintain perfectly straight paths across fields. Even on rolling terrain or when starting from a standstill, the vehicle knows its orientation, ensuring that rows are planted and tended without overlap or gaps. The board’s robust design handles the vibration and electrical interference common in heavy machinery, providing stable operation throughout long farming days.
Marine and Survey Equipment Manufacturing:
The GD-982 is ideal for marine navigation units and survey instrument builders who need a high-precision engine inside their products. A survey equipment manufacturer might use this board to power a new dual-antenna RTK receiver for land or marine surveys, offering end-users reliable performance even in challenging conditions. Marine integrators could install the board in a vessel’s navigation system so that the boat can determine its heading (via dual antennas on the bow and stern) along with position, improving autopilot accuracy for harbor entry, channel following, or formation movement of multiple ships.
APPLICATIONS


TECHNICAL SPECIFICATIONS
Feature | Specification | Feature | Specification |
---|---|---|---|
Signal Support |
GPS: L1C/A, L2C, L2P(Y), L5 BDS: B1I, B2I, B3I, B1C*, B2b* GLONASS: G1, G2 Galileo: E1, E5a, E5b, E6* QZSS: L1C/A, L2C, L5 SBAS: L1C/A |
Channels | 1408 Channels |
Single Point Positioning Accuracy (RMS) | Horizontal: 1.5 m Vertical: 2.5 m |
DGPS Accuracy (RMS) | Horizontal: 0.4 m Vertical: 0.8 m |
RTK Accuracy (RMS) | Horizontal: 0.8 cm + 1 ppm Vertical: 1.5 cm + 1 ppm |
Heading Accuracy | 0.1° / 1 m baseline |
Data Update Rate | Dual antenna: 20 Hz (RTK + Heading) | Time Accuracy | 20 ns |
Velocity Accuracy (RMS) | 0.03 m/s | Initialization Time | <5 s (typical) |
Initialization Reliability | >99.9% | Time to First Fix | Cold Start: <30 s |
Dimensions | 71.1 × 45.7 × 1.62 mm | Weight | 644 g |
Input Voltage | 3.3 V DC | Connectors |
RS232 × 2 USB × 1 Bluetooth (Long Range SPP) |
Working Temperature | -40°C to +85°C | Storage Temperature | -55°C to +95°C |
Humidity | 95% Non-condensing | Vibration / Shock | GJB150.16A-2009, MIL-STD-810F / GJB150.18A-2009, MIL-STD-810F |