The Holybro H-RTK Unicore UM982, featuring a dual antenna system, is an advanced RTK GPS module offering high-precision positioning and unique capabilities for autopilots. It's particularly effective in providing accurate yaw information without relying on a compass, making it ideal for environments with high magnetic interference.

• Dual antenna configuration enables Moving Baseline Yaw (GPS Heading) determinations with just one module.
• Capable of functioning without a traditional compass/magnetometer, providing reliable yaw information directly from GPS.
• Highly resistant to magnetic interference from vehicle motors, electrical systems, and external environmental sources like metallic structures.
• Supports RTK positioning for centimeter-level accuracy and is compatible with GPS/GLONASS, Beidou, Galileo, and QZSS systems.
• Includes a magnetometer, LED indicator, and a safety switch button.
• Versatile in its use, serving as an RTK-corrected vehicle GPS with or without moving baseline yaw determination, and as a base station GPS for RTCM data transmission.

Tips: It is recommended to use the H-RTK F9P-Base orF9P Helical as your base station because it's simple setup procedure in Mission Planner & QGroundControl. Neither MP nor QGC can configure the UM982 automatically as base station at this moment, additional manual setup is required.

• Product: UM982
• Application: Rover, Moving Baseline Rover, Base Station (Recommend using H-RTK F9P-Base as base station)
• Compass: IST8310
• GNSS: BDS B1I/B2I/B3I, GPS L1C/A/L2C(P)/L5, GLONASS L1/L2, Galileo E1/E5a/E5b, QZSS L1/L2/L5
• Antenna's Peak Gain (MAX): 2dBi
• LNA Gain (typical): 33±2dB
• Time-TO-First Fix: Cold start: ≤ 30s, Hot start: ≤ 5s
• RTK-Survey-In 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: 34.858.914.4mm, Antenna Diameter: 27.5mm, Antenna height: 59mm
• Weight: 37.9g (without antennas)

• For other technical detail and setup guide, please refer to the Holybro Documentation Page
• Setup & Getting Started (Ardupilot)
• Setup & Getting Started (PX4)
• Uprecise Download
• Firmware supports details

• 1x H-RTK UM982
• 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