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XM982-K4 RTK Module
XM982-K4 RTK Module

XM982-K4 RTK Module

XM982-K4 is a high‑performance, multi‑constellation RTK GNSS module built on the NebulasIV platform. It delivers reliable centimeter‑level positioning accuracy (0.8 cm + 1 ppm) by tracking all major satellite systems (BDS, GPS, GLONASS, Galileo). With dual‑antenna heading support, an industrial operating temperature range, and a compact form factor, it is engineered as the core positioning solution for autonomous drones, robotics, precision agriculture, and advanced surveying equipment.

XM982-K4 RTK Module

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Product Detail

XM982-K4 RTK GNSS Module – Dual‑Antenna Heading & Positioning

High‑performance RTK GNSS module with dual‑antenna heading support, 1408 channels based on NebulasIV, and 20Hz update rate. Delivers centimeter‑level positioning and 0.2° heading accuracy for UAV, autonomous machines, and precision agriculture.

RTK + Dual‑Antenna Heading
GPS L1/L2/L5 · BDS B1/B2/B3
GLONASS L1/L2 · Galileo E1/E5a/E5b
QZSS L1/L2/L5 · SBAS
0.8 cm + 1 ppm RTK
0.2° Heading · 20 Hz Output
0Channels
0RTK (cm+ppm)
0Heading (°)
0Hz Update
Request a Quote            Download Datasheet
XM982-K4 RTK GNSS Module
PRODUCT OVERVIEW

Dual‑Antenna RTK for Precision Heading & Positioning

The XM982‑K4 is a high‑performance RTK GNSS module built on Unicore’s NebulasIV SoC, featuring 1408 channels and dual‑antenna support. It provides simultaneous RTK positioning and heading calculation with 0.2° accuracy, making it ideal for UAV, autonomous vehicles, marine navigation, and precision agriculture.

XM982-K4 module detail with pin connectors

Key Features

The XM982‑K4 combines multi‑constellation, multi‑frequency tracking with advanced RTK and heading engines. Its dual‑antenna design eliminates the need for external magnetometers, reducing system complexity and cost.

  • 1408 channels based on NebulasIV SoC
  • GPS L1/L2/L5 · BDS B1/B2/B3 · GLONASS L1/L2 · Galileo E1/E5a/E5b · QZSS L1/L2/L5 · SBAS
  • RTK accuracy: 0.8 cm + 1 ppm (horizontal) · 1.5 cm + 1 ppm (vertical)
  • Heading accuracy: 0.2° / 1 m baseline
  • 20 Hz RTK + heading output · 20 Hz raw data
  • Compact 43×30×10.8 mm, weight 14.5 g
  • Operating voltage 3.6‑6.0V, power consumption 1.6W
CORE FEATURES

Six Powerful Features of XM982‑K4

Engineered for high‑precision navigation and heading, the XM982‑K4 delivers exceptional performance in a compact module.

🛰️

1408 Channels

NebulasIV SoC with 1408 channels tracks all GNSS constellations and frequencies simultaneously for maximum satellite availability.

Learn More →
🧭

Dual‑Antenna Heading

Heading accuracy of 0.2° RMS with 1m baseline — ideal for UAV, autonomous vehicles, and marine navigation.

Learn More →
📡

Multi‑Constellation RTK

Supports GPS, BDS, GLONASS, Galileo, QZSS, and SBAS for robust RTK positioning in any environment.

Learn More →
⚡

20 Hz Update Rate

Dual‑antenna RTK + heading at 20Hz raw data output — real‑time performance for dynamic applications.

Learn More →
🔗

Compact & Rugged

43×30×10.8 mm, 14.5 g, operating -40°C to +85°C, MIL‑STD‑810F vibration and shock.

Learn More →
🔌

Flexible Interfaces

1.25mm 8‑pin locking connector with UART, 1PPS, and CAN (shared) for easy integration.

Learn More →
TECHNICAL SPECIFICATIONS

Detailed Module Specifications

Complete technical parameters for the XM982‑K4 RTK GNSS module.

General
Module TypeRTK GNSS Module
Dimensions43 × 30 × 10.8 mm
Weight14.5 g
Connector1.25mm 8‑pin locking seat
Operating Voltage3.6 – 6.0 V (typical 5.0V)
Power Consumption1.6 W
Channels1408, based on NebulasIV
Frequency SupportGPS L1/L2/L5 · BDS B1I/B2I/B3I · GLONASS L1/L2 · Galileo E1/E5a/E5b · QZSS L1/L2/L5 · SBAS
RTK Horizontal (RMS)0.8 cm + 1 ppm
RTK Vertical (RMS)1.5 cm + 1 ppm
Heading Accuracy (RMS)0.2° / 1 m baseline
Single‑point Horizontal (RMS)1.5 m
DGPS Horizontal (RMS)0.4 m
Cold Start< 30 s
RTK Initialization< 5 s (typical)
RTK Reliability> 99.9%
Data Update Rate20 Hz (RTK+Heading) · 20 Hz raw data
Speed Accuracy0.3 m/s (RMS)
Time Accuracy20 ns (RMS)
UART2 × (RX1/TX1, RX2/TX2) TTL levels
1PPS1 × output for synchronization
CAN1 × (shared with UART3, optional)
Differential DataRTCM V3.X
Data FormatNMEA‑0183, Unicore protocol
Baud Rate4800 – 921600 bps (default 115200)
PWRRed — power input present
TXBlue (flashing) — data output active
PPSBlue (flashing after 3D fix) — timing pulse
RTKBlue (solid in RTK Fixed mode) — RTK status
PVTAlways on during positioning
Operating Temperature-40°C to +85°C
Storage Temperature-40°C to +105°C
VibrationMIL‑STD‑810F
ShockMIL‑STD‑810F
WHY STARMAX

Trusted by GNSS Professionals

We combine technical expertise, manufacturing excellence, and global logistics to deliver reliable GNSS modules.

✅

ISO9001

Quality management certified

📋

CE / FCC / RoHS

Global compliance standards

🔧

OEM / ODM

Custom designs available

🛠️

Technical Support

Expert engineers ready to assist

🏭

Factory Direct

Competitive pricing

📦

Fast Delivery

Global logistics network

🔬

In‑House Testing

Full quality control

⭐

10+ Years

Industry experience

APPLICATION SCENARIOS

Versatile Deployment

The XM982‑K4 is designed for high‑accuracy navigation and heading applications where reliability and precision are critical.

🚁

UAV & Drone Navigation

Precise heading and RTK positioning for autonomous flight and mapping.

Learn More
🤖

Autonomous Machines

Reliable positioning and heading for robotics and AGVs.

Learn More
🚜

Precision Agriculture

Accurate guidance for tractors, sprayers, and harvesters.

Learn More
🚢

Marine Navigation

Heading and positioning for vessels and buoys.

Learn More
🗺️

Surveying & Mapping

Base station or rover applications with RTK precision.

Learn More
🏗️

Infrastructure Monitoring

Structural deformation and asset tracking with centimeter accuracy.

Learn More
DOWNLOAD CENTER

Resources & Documentation

Access datasheets, user manuals, 3D models, firmware, and SDK for the XM982‑K4 module.

📄

Datasheet

v2.1
1.8 MB
PDF
📘

User Manual

v1.9
4.2 MB
PDF
📐

3D Model

STEP
3.6 MB
ZIP
📦

Firmware

v2.3.5
8.1 MB
BIN
⚙️

SDK & API

v3.0
11.4 MB
ZIP
FAQ

Frequently Asked Questions

Find answers to common questions about the XM982‑K4 RTK GNSS module.

RELATED PRODUCTS

Discover other high‑performance GNSS modules and antennas from STARMAX.

📡

UM982

Dual‑Antenna RTK Module

📡

UM980

High‑Precision RTK Module

📡

XM-A770

High‑Gain GNSS Antenna

📡

XM-A560

Helical GNSS Antenna

Ready to Get a Quote?

Contact our team today for pricing, technical support, or to request a sample of the XM982‑K4 RTK GNSS Module. We're here to help you integrate precision positioning and heading into your next project.

✉ serenasSun@outlook.com📞 +86 186 7671 6687💬 WhatsApp: +852 6945 5984🌐 www.starmax.ltd

Request a Quote

Fill in your details and we'll respond within 24 hours.

No comment

Previous : XM980-K4 RTK GNSS Modules Next : XM-A770 GNSS Antenna
Product Detail

XM982-K4 RTK GNSS Module – Dual‑Antenna Heading & Positioning

High‑performance RTK GNSS module with dual‑antenna heading support, 1408 channels based on NebulasIV, and 20Hz update rate. Delivers centimeter‑level positioning and 0.2° heading accuracy for UAV, autonomous machines, and precision agriculture.

RTK + Dual‑Antenna Heading
GPS L1/L2/L5 · BDS B1/B2/B3
GLONASS L1/L2 · Galileo E1/E5a/E5b
QZSS L1/L2/L5 · SBAS
0.8 cm + 1 ppm RTK
0.2° Heading · 20 Hz Output
0Channels
0RTK (cm+ppm)
0Heading (°)
0Hz Update
Request a Quote            Download Datasheet
XM982-K4 RTK GNSS Module
PRODUCT OVERVIEW

Dual‑Antenna RTK for Precision Heading & Positioning

The XM982‑K4 is a high‑performance RTK GNSS module built on Unicore’s NebulasIV SoC, featuring 1408 channels and dual‑antenna support. It provides simultaneous RTK positioning and heading calculation with 0.2° accuracy, making it ideal for UAV, autonomous vehicles, marine navigation, and precision agriculture.

XM982-K4 module detail with pin connectors

Key Features

The XM982‑K4 combines multi‑constellation, multi‑frequency tracking with advanced RTK and heading engines. Its dual‑antenna design eliminates the need for external magnetometers, reducing system complexity and cost.

  • 1408 channels based on NebulasIV SoC
  • GPS L1/L2/L5 · BDS B1/B2/B3 · GLONASS L1/L2 · Galileo E1/E5a/E5b · QZSS L1/L2/L5 · SBAS
  • RTK accuracy: 0.8 cm + 1 ppm (horizontal) · 1.5 cm + 1 ppm (vertical)
  • Heading accuracy: 0.2° / 1 m baseline
  • 20 Hz RTK + heading output · 20 Hz raw data
  • Compact 43×30×10.8 mm, weight 14.5 g
  • Operating voltage 3.6‑6.0V, power consumption 1.6W
CORE FEATURES

Six Powerful Features of XM982‑K4

Engineered for high‑precision navigation and heading, the XM982‑K4 delivers exceptional performance in a compact module.

🛰️

1408 Channels

NebulasIV SoC with 1408 channels tracks all GNSS constellations and frequencies simultaneously for maximum satellite availability.

Learn More →
🧭

Dual‑Antenna Heading

Heading accuracy of 0.2° RMS with 1m baseline — ideal for UAV, autonomous vehicles, and marine navigation.

Learn More →
📡

Multi‑Constellation RTK

Supports GPS, BDS, GLONASS, Galileo, QZSS, and SBAS for robust RTK positioning in any environment.

Learn More →
⚡

20 Hz Update Rate

Dual‑antenna RTK + heading at 20Hz raw data output — real‑time performance for dynamic applications.

Learn More →
🔗

Compact & Rugged

43×30×10.8 mm, 14.5 g, operating -40°C to +85°C, MIL‑STD‑810F vibration and shock.

Learn More →
🔌

Flexible Interfaces

1.25mm 8‑pin locking connector with UART, 1PPS, and CAN (shared) for easy integration.

Learn More →
TECHNICAL SPECIFICATIONS

Detailed Module Specifications

Complete technical parameters for the XM982‑K4 RTK GNSS module.

General
Module TypeRTK GNSS Module
Dimensions43 × 30 × 10.8 mm
Weight14.5 g
Connector1.25mm 8‑pin locking seat
Operating Voltage3.6 – 6.0 V (typical 5.0V)
Power Consumption1.6 W
Channels1408, based on NebulasIV
Frequency SupportGPS L1/L2/L5 · BDS B1I/B2I/B3I · GLONASS L1/L2 · Galileo E1/E5a/E5b · QZSS L1/L2/L5 · SBAS
RTK Horizontal (RMS)0.8 cm + 1 ppm
RTK Vertical (RMS)1.5 cm + 1 ppm
Heading Accuracy (RMS)0.2° / 1 m baseline
Single‑point Horizontal (RMS)1.5 m
DGPS Horizontal (RMS)0.4 m
Cold Start< 30 s
RTK Initialization< 5 s (typical)
RTK Reliability> 99.9%
Data Update Rate20 Hz (RTK+Heading) · 20 Hz raw data
Speed Accuracy0.3 m/s (RMS)
Time Accuracy20 ns (RMS)
UART2 × (RX1/TX1, RX2/TX2) TTL levels
1PPS1 × output for synchronization
CAN1 × (shared with UART3, optional)
Differential DataRTCM V3.X
Data FormatNMEA‑0183, Unicore protocol
Baud Rate4800 – 921600 bps (default 115200)
PWRRed — power input present
TXBlue (flashing) — data output active
PPSBlue (flashing after 3D fix) — timing pulse
RTKBlue (solid in RTK Fixed mode) — RTK status
PVTAlways on during positioning
Operating Temperature-40°C to +85°C
Storage Temperature-40°C to +105°C
VibrationMIL‑STD‑810F
ShockMIL‑STD‑810F
WHY STARMAX

Trusted by GNSS Professionals

We combine technical expertise, manufacturing excellence, and global logistics to deliver reliable GNSS modules.

✅

ISO9001

Quality management certified

📋

CE / FCC / RoHS

Global compliance standards

🔧

OEM / ODM

Custom designs available

🛠️

Technical Support

Expert engineers ready to assist

🏭

Factory Direct

Competitive pricing

📦

Fast Delivery

Global logistics network

🔬

In‑House Testing

Full quality control

⭐

10+ Years

Industry experience

APPLICATION SCENARIOS

Versatile Deployment

The XM982‑K4 is designed for high‑accuracy navigation and heading applications where reliability and precision are critical.

🚁

UAV & Drone Navigation

Precise heading and RTK positioning for autonomous flight and mapping.

Learn More
🤖

Autonomous Machines

Reliable positioning and heading for robotics and AGVs.

Learn More
🚜

Precision Agriculture

Accurate guidance for tractors, sprayers, and harvesters.

Learn More
🚢

Marine Navigation

Heading and positioning for vessels and buoys.

Learn More
🗺️

Surveying & Mapping

Base station or rover applications with RTK precision.

Learn More
🏗️

Infrastructure Monitoring

Structural deformation and asset tracking with centimeter accuracy.

Learn More
DOWNLOAD CENTER

Resources & Documentation

Access datasheets, user manuals, 3D models, firmware, and SDK for the XM982‑K4 module.

📄

Datasheet

v2.1
1.8 MB
PDF
📘

User Manual

v1.9
4.2 MB
PDF
📐

3D Model

STEP
3.6 MB
ZIP
📦

Firmware

v2.3.5
8.1 MB
BIN
⚙️

SDK & API

v3.0
11.4 MB
ZIP
FAQ

Frequently Asked Questions

Find answers to common questions about the XM982‑K4 RTK GNSS module.

RELATED PRODUCTS

Discover other high‑performance GNSS modules and antennas from STARMAX.

📡

UM982

Dual‑Antenna RTK Module

📡

UM980

High‑Precision RTK Module

📡

XM-A770

High‑Gain GNSS Antenna

📡

XM-A560

Helical GNSS Antenna

Ready to Get a Quote?

Contact our team today for pricing, technical support, or to request a sample of the XM982‑K4 RTK GNSS Module. We're here to help you integrate precision positioning and heading into your next project.

✉ serenasSun@outlook.com📞 +86 186 7671 6687💬 WhatsApp: +852 6945 5984🌐 www.starmax.ltd

Request a Quote

Fill in your details and we'll respond within 24 hours.

XM982-K4 RTK Module
XM982-K4 is a high‑performance, multi‑constellation RTK GNSS module built on the NebulasIV platform. It delivers reliable centimeter‑level positioning accuracy (0.8 cm + 1 ppm) by tracking all major satellite systems (BDS, GPS, GLONASS, Galileo). With dual‑antenna heading support, an industrial operating temperature range, and a compact form factor, it is engineered as the core positioning solution for autonomous drones, robotics, precision agriculture, and advanced surveying equipment.
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