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Holybro H-RTK Unicore UM982 (Dual Antenna Heading)
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Holybro H-RTK Unicore UM982 (Dual Antenna Heading) is a Holybro catalog item in GNSS & RTK Navigation. Review the model details below and request compatibility and supply information for civilian use.
Model specifications
| Brand | Holybro |
|---|---|
| Model | H-RTK Unicore UM982 (Dual Antenna Heading) |
| Manufacturer SKU | 12036 |
| Product | UM982 |
| Application | Rover Moving Baseline Rover Base Station (Recommend using H-RTK F9P-Base as a base station) |
| Compass | IST8310 |
| GNSS | BDS B1I/B2I/B3I GPS L1C/A/L2P (Y)/L2C/L5 GLONASS L1/L2 Galileo E1/E5a/E5b QZSS L1/L2/L5 |
| RTK Accuracy (RMS) | Horizontal: 0.8cm + 1ppm Vertical: 1.5cm + 1ppm Velocity: 0.03 m/s |
| DGPS Accuracy (RMS) | Horizontal: 0.4 m Vertical: 0.8 m Heading: 0.1°/1 m baseline |
| Single Point Positioning Accuracy (RMS) | Horizontal: 1.5m Vertical: 2.5m |
| Antennas Peak Gain (MAX) | 2.5dBi |
| LNA Gain (typical) | 33±2dB |
| Time-TO-First Fix | Cold start: ≤ 30s Hot start: ≤ 5s |
| RTK-SurveyIn-Time | ≤5 minute @2.0mCEP |
| Data and Update Rate | 20 Hz Positioning & Heading 20 Hz Raw Data observation |
| Port | Port 1: GH1.25 10-pin Port 2: USB Type-C Port 3: UART 2 (GH1.25 6pin) |
| Cable Length | GH 10P: 150mm GH 10P: 400mm GH 10P to 6P: 300mm |
| Antenna Connection Type | Board: SMA female Antenna: SMA male |
| Baud rate: (Adjustable) | 230400 5Hz default |
| Working voltage: | 4.75V~5.25V |
| Current Consumption | ~350mA |
| Dimensions | Board: 34.8*58.9*14.4mm Antenna Diameter: 27.5mm Antenna height: 59mm |
| Weight | 40.3g (without antennas) |
Manufacturer technical notes
The Holybro UM982 Dual Antenna RTK GPS provides high-precision positioning information and is capable of generating non-magnetometer moving baseline yaw determinations for controllers with a single GPS module.
One of the best applications of this GPS is to provide compass-less YAW information to the controller (commonly called GPS Heading or Moving Baseline Yaw). Using this GPS as a yaw source prevents magnetic interference from the vehicle motors and electrical systems, and any environmental interference sources, such as metallic structures or equipment, that can cause incorrect yaw reports to the controller.
This works even if the GPSs are not receiving RTCM data from a fixed RTK station or NTRIP server. The device is based on the Unicore UM982 NMEA GNSS module and supports RTK positioning adjustment for centimeter-level accuracy, GPS/GLONASS, Beidou, Galileo, and QZSS global positioning systems.
It also includes a magnetometer, LED indicators, and a safety button. It also serves as an RTK-corrected vehicle GPS, with or without moving baseline yaw determination, and as a base station GPS for sending RTCM data to a ground control station to provide an RTK source for the vehicle via telemetry.
Note: The Status LED driver has changed. This LED is supported in PX4 1.14, ArduPilot 4.4.0 & later. (More info)
Dual antennas allow Moving Baseline Yaw (GPS Heading) with just one module
Can replace the traditional compass/magnetometer
Perfect for a system/environment with high magnetic interference
Excellent RTK performance
Tips: It is recommended to use the H-RTK F9P-Base or F9P Helical as your base station because it's a simple setup procedure in Mission Planner & QGroundControl. Currently, QGC cannot configure the UM982 automatically as a base station; additional manual setup is required.
For other technical details and setup guides, please refer to the Holybro Documentation Page
Setup & Getting Started (Ardupilot)
Setup & Getting Started (PX4)
Uprecise Download
Firmware supports details
Package Included:
2x High Precision Helical Antennas
2x Antenna Mounts
2x SMA Cables (40cm)
2x 10pin - 10pin JST-GH Cables
1x 10pin - 6pin JST-GH Cable
1x 6pin - 6pin JST-GH Cable
Manufacturer technical and configuration tables
| Product | UM982 |
| Application | Rover Moving Baseline Rover Base Station (Recommend using H-RTK F9P-Base as a base station) |
| Compass | IST8310 |
| GNSS | BDS B1I/B2I/B3I GPS L1C/A/L2P (Y)/L2C/L5 GLONASS L1/L2 Galileo E1/E5a/E5b QZSS L1/L2/L5 |
| RTK Accuracy (RMS) | Horizontal: 0.8cm + 1ppm Vertical: 1.5cm + 1ppm Velocity: 0.03 m/s |
| Horizontal: 0.8cm + 1ppm | |
| Vertical: 1.5cm + 1ppm | |
| Velocity: 0.03 m/s | |
| DGPS Accuracy (RMS) | Horizontal: 0.4 m Vertical: 0.8 m Heading: 0.1°/1 m baseline |
| Horizontal: 0.4 m | |
| Vertical: 0.8 m | |
| Heading: 0.1°/1 m baseline | |
| Single Point Positioning Accuracy (RMS) | Horizontal: 1.5m Vertical: 2.5m |
| Horizontal: 1.5m | |
| Vertical: 2.5m | |
| Antennas Peak Gain (MAX) | 2.5dBi |
| LNA Gain (typical) | 33±2dB |
| Time-TO-First Fix | Cold start: ≤ 30s Hot start: ≤ 5s |
| Data and Update Rate | 20 Hz Positioning & Heading 20 Hz Raw Data observation |
| Port | Port 1: GH1.25 10-pin Port 2: USB Type-C Port 3: UART 2 (GH1.25 6pin) |
| Cable Length | GH 10P: 150mm GH 10P: 400mm GH 10P to 6P: 300mm |
| Antenna Connection Type | Board: SMA female Antenna: SMA male |
| Baud rate: (Adjustable) | 230400 5Hz default |
| Working voltage: | 4.75V~5.25V |
| Current Consumption | ~350mA |
| Dimensions | Board: 34.8*58.9*14.4mm Antenna Diameter: 27.5mm Antenna height: 59mm |
| Weight | 40.3g (without antennas) |
| Horizontal: 0.8cm + 1ppm |
| Vertical: 1.5cm + 1ppm |
| Velocity: 0.03 m/s |
| Horizontal: 0.4 m |
| Vertical: 0.8 m |
| Heading: 0.1°/1 m baseline |
| Horizontal: 1.5m |
| Vertical: 2.5m |
| 30° Antenna Mount | Antenna Extension Cable | GPS Extension Cable |
Product inquiry
Availability, price, package contents and hardware revision are confirmed on inquiry. This listing does not assert local stock, a delivery date or official distributor status. Confirm voltage, connectors, firmware and operating requirements before use.
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Manufacturer Resources
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