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UM982 Multi-Frequency GNSS RTK Dual-Antenna Positioning & Heading Module

UM982 Multi-Frequency GNSS RTK Dual-Antenna Positioning & Heading Module

UM982 is a next-generation multi-constellation, multi-frequency GNSS RTK module with dual-antenna heading capability, delivering centimeter-level accuracy and superior anti-interference performance.

UM982 Multi-Frequency GNSS RTK Dual-Antenna Positioning & Heading Module

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Product Detail

1408 CHANNELS · RTK · DUAL‑ANTENNA

UM982 Multi‑Frequency GNSS RTK Dual‑Antenna Module

Next‑generation GNSS RTK module with dual‑antenna heading, 1408 channels, RTK/PPP, and 20Hz update rate — engineered for UAV, autonomous machines, precision agriculture, and high‑precision navigation.

RTK + PPP Positioning
Dual‑Antenna Heading (0.1°)
GPS · BDS · GLONASS · Galileo
QZSS · SBAS · L‑Band
20 Hz RTK+Heading
1408 Channels (NebulasIV)
1408Channels
0.1°Heading Accuracy
20Hz Update
8mm+1ppmRTK Horizontal
Request a Quote           View Specifications
UM982 GNSS RTK Module
PRODUCT OVERVIEW

Precision Positioning & Dual‑Antenna Heading

The UM982 is Unicore's next‑generation high‑precision GNSS module, integrating RF, baseband, and advanced RTK/PPP algorithms on the NebulasIV SoC. With dual‑antenna support, it delivers reliable heading and centimeter‑level positioning even in complex electromagnetic environments — ideal for UAV, autonomous machines, and precision agriculture.

UM982 module detail

Dual‑Antenna RTK + Heading

Primary and secondary antennas track all GNSS frequencies simultaneously. The on‑chip RTK engine computes precise positioning while the dual‑antenna baseline provides accurate heading — all in a compact 16×21mm LGA package.

Built‑in advanced anti‑interference ensures reliable data in complex electromagnetic environments, making UM982 the perfect choice for high‑precision navigation and autonomous applications.

  • 1408 Channels based on NebulasIV SoC
  • GPS L1/L2/L5 · BDS B1/B2/B3 · GLONASS G1/G2 · Galileo E1/E5/E6
  • QZSS L1/L2/L5/L6 · SBAS · L‑Band
  • RTK Horizontal: 8mm + 1ppm · Vertical: 15mm + 1ppm
  • Heading Accuracy: 0.1° / 1m baseline
  • 20 Hz RTK + Heading update rate

1408

Channels

0.1°

Heading Accuracy

20 Hz

Update Rate

8mm+1ppm

RTK Horizontal
📡

RTK + PPP

Centimeter‑level positioning with RTK and PPP support for flexible correction sources.

🧭

Dual‑Antenna Heading

Accurate heading (0.1° RMS) using primary and secondary antennas — no external IMU needed.

🛡️

Anti‑Interference

Built‑in advanced anti‑jamming ensures reliable performance in complex electromagnetic environments.

⚡

20 Hz Update

High‑rate RTK + heading output for dynamic applications like UAV and autonomous machines.

CORE FEATURES

Six Core Capabilities for High‑Precision Navigation

UM982 combines the latest GNSS SoC technology, multi‑frequency tracking, and dual‑antenna heading to deliver unmatched performance in demanding applications.

📡

1408 Channels

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

Learn More →
🧭

Dual‑Antenna Heading

Heading accuracy of 0.1° RMS with 1m baseline — ideal for UAV, autonomous vehicles, and marine navigation.

Learn More →
🛰️

Full Constellation Support

GPS, BDS, GLONASS, Galileo, QZSS, SBAS, and L‑Band — global coverage with multi‑frequency signals.

Learn More →
📐

RTK & PPP

Horizontal 8mm+1ppm, vertical 15mm+1ppm with RTK; PPP horizontal 5cm for global precision without base stations.

Learn More →
⚡

20 Hz Update Rate

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

Learn More →
🛡️

Industrial Reliability

Operating temperature -40°C to +85°C, MIL‑STD‑810F vibration & shock — built for rugged environments.

Learn More →
DUAL‑ANTENNA TECHNOLOGY

Precision Heading with Dual‑Antenna RTK

The UM982 uses two antennas to compute both position and heading simultaneously. The primary antenna tracks all GNSS signals while the secondary antenna provides the baseline for accurate heading — all processed on‑chip.

UM982 dual-antenna architecture
GNSS Antenna
RF Front‑End
Nebulas IV SoC
1408 Channels
RTK / PPP Core
Dual‑Antenna Heading
0.1° RMS

How Dual‑Antenna Heading Works

The UM982 processes carrier‑phase measurements from both antennas to compute the baseline vector. This provides:

  • Heading accuracy of 0.1° RMS with 1m baseline
  • No external IMU or magnetometer required
  • Reliable heading even in static or slow‑moving conditions
  • 20Hz heading update rate for dynamic applications
  • Integrated RTK positioning simultaneously

The module supports RTCM V3.X correction data and outputs NMEA 0183 or Unicore proprietary formats.

TECHNICAL SPECIFICATIONS

Detailed Module Specifications

Comprehensive technical data for the UM982 Multi‑Frequency GNSS RTK Dual‑Antenna Module.

General+
Packaging48‑pin LGA
Dimensions16.0 × 21.0 × 2.6 mm
Weight1.82 ± 0.03 g
GNSS Performance+
Channels1408, based on NebulasIV
Frequency SupportGPS L1/L2/L5 · BDS B1/B2/B3 · GLONASS G1/G2 · Galileo E1/E5/E6 · QZSS L1/L2/L5/L6 · SBAS · L‑Band
RTK Horizontal (RMS)8mm + 1ppm
RTK Vertical (RMS)15mm + 1ppm
PPP Horizontal (RMS)5cm
Heading Accuracy (RMS)0.1° / 1m baseline
Single‑point Horizontal (RMS)1.5m
DGPS Horizontal (RMS)0.4m
Cold Start< 30s
RTK Initialization< 5s (typical)
RTK Reliability> 99.9%
Data Update Rate20Hz (RTK+Heading) · 20Hz raw data
Communication Interfaces+
UART3 × LVTTL
SPI1 ×
I²C1 ×
CAN1 × (shared with UART3)
Differential DataRTCM V3.X
Data FormatNMEA 0183, Unicore
Environmental+
Operating Temperature-40°C to +85°C
Storage Temperature-55°C to +95°C
Humidity95% non‑condensing
VibrationMIL‑STD‑810F
ShockMIL‑STD‑810F
APPLICATION SCENARIOS

Built for Demanding Applications

From UAVs to autonomous machines, the UM982 delivers reliable positioning and heading in the most challenging environments.

Where Precision Matters Most

The UM982 is designed for applications that require both high‑precision positioning and accurate heading in a compact, rugged module.

  • UAV & Drone Navigation — precise heading and RTK positioning for autonomous flight
  • Autonomous Machines — reliable positioning and heading for robotics and AGVs
  • Precision Agriculture — accurate guidance for tractors and sprayers
  • Marine Navigation — heading and positioning for vessels and buoys
  • Surveying & Mapping — base station or rover applications
  • Infrastructure Monitoring — structural deformation and asset tracking

The UM982's dual‑antenna heading eliminates the need for external magnetometers, reducing system complexity and cost.

UM982 application scenarios
🚁
UAV Navigation
🚜
Precision Agriculture
🚢
Marine Navigation
🤖
Autonomous Machines
📍
Surveying & Mapping

Ready to Get a Quote?

Contact our team today for pricing, technical support, or to request a demo of the UM982 GNSS RTK Dual‑Antenna Module. We're here to help you integrate precision positioning 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.

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Product Detail
1408 CHANNELS · RTK · DUAL‑ANTENNA

UM982 Multi‑Frequency GNSS RTK Dual‑Antenna Module

Next‑generation GNSS RTK module with dual‑antenna heading, 1408 channels, RTK/PPP, and 20Hz update rate — engineered for UAV, autonomous machines, precision agriculture, and high‑precision navigation.

RTK + PPP Positioning
Dual‑Antenna Heading (0.1°)
GPS · BDS · GLONASS · Galileo
QZSS · SBAS · L‑Band
20 Hz RTK+Heading
1408 Channels (NebulasIV)
1408Channels
0.1°Heading Accuracy
20Hz Update
8mm+1ppmRTK Horizontal
Request a Quote           View Specifications
UM982 GNSS RTK Module
PRODUCT OVERVIEW

Precision Positioning & Dual‑Antenna Heading

The UM982 is Unicore's next‑generation high‑precision GNSS module, integrating RF, baseband, and advanced RTK/PPP algorithms on the NebulasIV SoC. With dual‑antenna support, it delivers reliable heading and centimeter‑level positioning even in complex electromagnetic environments — ideal for UAV, autonomous machines, and precision agriculture.

UM982 module detail

Dual‑Antenna RTK + Heading

Primary and secondary antennas track all GNSS frequencies simultaneously. The on‑chip RTK engine computes precise positioning while the dual‑antenna baseline provides accurate heading — all in a compact 16×21mm LGA package.

Built‑in advanced anti‑interference ensures reliable data in complex electromagnetic environments, making UM982 the perfect choice for high‑precision navigation and autonomous applications.

  • 1408 Channels based on NebulasIV SoC
  • GPS L1/L2/L5 · BDS B1/B2/B3 · GLONASS G1/G2 · Galileo E1/E5/E6
  • QZSS L1/L2/L5/L6 · SBAS · L‑Band
  • RTK Horizontal: 8mm + 1ppm · Vertical: 15mm + 1ppm
  • Heading Accuracy: 0.1° / 1m baseline
  • 20 Hz RTK + Heading update rate

1408

Channels

0.1°

Heading Accuracy

20 Hz

Update Rate

8mm+1ppm

RTK Horizontal
📡

RTK + PPP

Centimeter‑level positioning with RTK and PPP support for flexible correction sources.

🧭

Dual‑Antenna Heading

Accurate heading (0.1° RMS) using primary and secondary antennas — no external IMU needed.

🛡️

Anti‑Interference

Built‑in advanced anti‑jamming ensures reliable performance in complex electromagnetic environments.

⚡

20 Hz Update

High‑rate RTK + heading output for dynamic applications like UAV and autonomous machines.

CORE FEATURES

Six Core Capabilities for High‑Precision Navigation

UM982 combines the latest GNSS SoC technology, multi‑frequency tracking, and dual‑antenna heading to deliver unmatched performance in demanding applications.

📡

1408 Channels

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

Learn More →
🧭

Dual‑Antenna Heading

Heading accuracy of 0.1° RMS with 1m baseline — ideal for UAV, autonomous vehicles, and marine navigation.

Learn More →
🛰️

Full Constellation Support

GPS, BDS, GLONASS, Galileo, QZSS, SBAS, and L‑Band — global coverage with multi‑frequency signals.

Learn More →
📐

RTK & PPP

Horizontal 8mm+1ppm, vertical 15mm+1ppm with RTK; PPP horizontal 5cm for global precision without base stations.

Learn More →
⚡

20 Hz Update Rate

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

Learn More →
🛡️

Industrial Reliability

Operating temperature -40°C to +85°C, MIL‑STD‑810F vibration & shock — built for rugged environments.

Learn More →
DUAL‑ANTENNA TECHNOLOGY

Precision Heading with Dual‑Antenna RTK

The UM982 uses two antennas to compute both position and heading simultaneously. The primary antenna tracks all GNSS signals while the secondary antenna provides the baseline for accurate heading — all processed on‑chip.

UM982 dual-antenna architecture
GNSS Antenna
RF Front‑End
Nebulas IV SoC
1408 Channels
RTK / PPP Core
Dual‑Antenna Heading
0.1° RMS

How Dual‑Antenna Heading Works

The UM982 processes carrier‑phase measurements from both antennas to compute the baseline vector. This provides:

  • Heading accuracy of 0.1° RMS with 1m baseline
  • No external IMU or magnetometer required
  • Reliable heading even in static or slow‑moving conditions
  • 20Hz heading update rate for dynamic applications
  • Integrated RTK positioning simultaneously

The module supports RTCM V3.X correction data and outputs NMEA 0183 or Unicore proprietary formats.

TECHNICAL SPECIFICATIONS

Detailed Module Specifications

Comprehensive technical data for the UM982 Multi‑Frequency GNSS RTK Dual‑Antenna Module.

General+
Packaging48‑pin LGA
Dimensions16.0 × 21.0 × 2.6 mm
Weight1.82 ± 0.03 g
GNSS Performance+
Channels1408, based on NebulasIV
Frequency SupportGPS L1/L2/L5 · BDS B1/B2/B3 · GLONASS G1/G2 · Galileo E1/E5/E6 · QZSS L1/L2/L5/L6 · SBAS · L‑Band
RTK Horizontal (RMS)8mm + 1ppm
RTK Vertical (RMS)15mm + 1ppm
PPP Horizontal (RMS)5cm
Heading Accuracy (RMS)0.1° / 1m baseline
Single‑point Horizontal (RMS)1.5m
DGPS Horizontal (RMS)0.4m
Cold Start< 30s
RTK Initialization< 5s (typical)
RTK Reliability> 99.9%
Data Update Rate20Hz (RTK+Heading) · 20Hz raw data
Communication Interfaces+
UART3 × LVTTL
SPI1 ×
I²C1 ×
CAN1 × (shared with UART3)
Differential DataRTCM V3.X
Data FormatNMEA 0183, Unicore
Environmental+
Operating Temperature-40°C to +85°C
Storage Temperature-55°C to +95°C
Humidity95% non‑condensing
VibrationMIL‑STD‑810F
ShockMIL‑STD‑810F
APPLICATION SCENARIOS

Built for Demanding Applications

From UAVs to autonomous machines, the UM982 delivers reliable positioning and heading in the most challenging environments.

Where Precision Matters Most

The UM982 is designed for applications that require both high‑precision positioning and accurate heading in a compact, rugged module.

  • UAV & Drone Navigation — precise heading and RTK positioning for autonomous flight
  • Autonomous Machines — reliable positioning and heading for robotics and AGVs
  • Precision Agriculture — accurate guidance for tractors and sprayers
  • Marine Navigation — heading and positioning for vessels and buoys
  • Surveying & Mapping — base station or rover applications
  • Infrastructure Monitoring — structural deformation and asset tracking

The UM982's dual‑antenna heading eliminates the need for external magnetometers, reducing system complexity and cost.

UM982 application scenarios
🚁
UAV Navigation
🚜
Precision Agriculture
🚢
Marine Navigation
🤖
Autonomous Machines
📍
Surveying & Mapping

Ready to Get a Quote?

Contact our team today for pricing, technical support, or to request a demo of the UM982 GNSS RTK Dual‑Antenna Module. We're here to help you integrate precision positioning 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.

×Enlarged view
UM982 Multi-Frequency GNSS RTK Dual-Antenna Positioning & Heading Module
UM982 is a next-generation multi-constellation, multi-frequency GNSS RTK module with dual-antenna heading capability, delivering centimeter-level accuracy and superior anti-interference performance.
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