{"product_id":"holybro-h-rtk-unicore-um982-dual-antenna-rtk-gps-moving-baseline-yaw-0-8cm-accuracy-20hz-pixhawk-uav","title":"HolyBro H-RTK Unicore UM982 — Dual Antenna RTK GPS, Moving Baseline Yaw, 0.8cm RTK Accuracy, 20Hz, IST8310 Compass, for Pixhawk \u0026 UAV Autopilots","description":"\u003ch2\u003eHolyBro H-RTK Unicore UM982 — Dual Antenna RTK GPS, Moving Baseline Yaw (GPS Heading), 0.8cm RTK Accuracy, 20Hz, IST8310 Compass, for Pixhawk Series \u0026amp; UAV Autopilots\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eHolyBro H-RTK Unicore UM982\u003c\/strong\u003e is a professional dual-antenna RTK GNSS module built around the \u003cstrong\u003eUnicore UM982\u003c\/strong\u003e chip. Its standout capability is \u003cstrong\u003eMoving Baseline Yaw (GPS Heading)\u003c\/strong\u003e — providing compass-free heading determination from a single module with two helical antennas. This eliminates yaw errors caused by motor interference, metallic structures, or environmental magnetic disturbances — making it ideal for large UAVs, survey platforms, and autonomous vehicles operating in magnetically challenging environments.\u003c\/p\u003e\n\n\u003cp\u003eIt supports full RTK positioning with \u003cstrong\u003e0.8cm horizontal accuracy\u003c\/strong\u003e, \u003cstrong\u003e20Hz update rate\u003c\/strong\u003e, and simultaneous multi-constellation reception (GPS, GLONASS, Galileo, BDS, QZSS). Plug-and-play with all Pixhawk and ArduPilot\/PX4 autopilots via standard JST-GH connectors.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Status LED driver support requires PX4 1.14 or ArduPilot 4.4.0 and later. Base station use requires manual configuration — it is recommended to use the H-RTK F9P-Base or F9P Helical as the base station, as Mission Planner and QGroundControl cannot auto-configure the UM982 as a base station at this time.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMoving Baseline Yaw (GPS Heading)\u003c\/strong\u003e — Dual-antenna design provides compass-free yaw determination with a single module; works without RTCM corrections from a base station\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplaces Traditional Compass\u003c\/strong\u003e — Eliminates magnetic interference from motors, ESCs, and metallic airframe components\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e0.8cm + 1ppm RTK Accuracy (Horizontal)\u003c\/strong\u003e — Sub-centimeter precision for precision mapping, inspection, and autonomous navigation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e0.1° Heading Accuracy\u003c\/strong\u003e — Per 1m baseline; exceptional directional precision for fixed heading UAVs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20Hz Positioning \u0026amp; Heading Update Rate\u003c\/strong\u003e — High-frequency outputs for responsive autopilot control\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-Constellation GNSS\u003c\/strong\u003e — GPS L1\/L2\/L5, GLONASS L1\/L2, Galileo E1\/E5a\/E5b, BDS B1I\/B2I\/B3I, QZSS L1\/L2\/L5\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIST8310 Compass\u003c\/strong\u003e — Integrated magnetometer for additional heading reference\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated LED \u0026amp; Safety Switch\u003c\/strong\u003e — Standard Pixhawk-compatible status LED and arming button\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTri-Port Connectivity\u003c\/strong\u003e — GH 10P (autopilot), USB-C (configuration), UART2 GH 6P (RTCM corrections)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlug-and-Play with Pixhawk Series\u003c\/strong\u003e — Compatible with Pixhawk 4, 5X, 6X, Cube, and all ArduPilot\/PX4 autopilots\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGNSS Chip:\u003c\/strong\u003e Unicore UM982\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompass:\u003c\/strong\u003e IST8310\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 37.9g (without antennas)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBoard Dimensions:\u003c\/strong\u003e 34.8 × 58.9 × 14.4mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAntenna Diameter:\u003c\/strong\u003e 27.5mm • Antenna Height: 59mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstellations:\u003c\/strong\u003e GPS L1C\/A\/L2P\/L2C\/L5 • GLONASS L1\/L2 • Galileo E1\/E5a\/E5b • BDS B1I\/B2I\/B3I • QZSS L1\/L2\/L5\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRTK Accuracy:\u003c\/strong\u003e H: 0.8cm+1ppm • V: 1.5cm+1ppm • Velocity: 0.03m\/s\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDGPS Accuracy:\u003c\/strong\u003e H: 0.4m • V: 0.8m • Heading: 0.1°\/1m baseline\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSingle Point Accuracy:\u003c\/strong\u003e H: 1.5m • V: 2.5m\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAntenna Gain:\u003c\/strong\u003e 2dBi peak • LNA Gain: 33±2dB\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTime-To-First-Fix:\u003c\/strong\u003e Cold Start ≤30s • Hot Start ≤5s\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRTK Survey-In Time:\u003c\/strong\u003e ≤5 min @2.0m CEP\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUpdate Rate:\u003c\/strong\u003e 20Hz positioning, heading \u0026amp; raw data\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBaud Rate:\u003c\/strong\u003e 230400 bps (default, 5Hz); adjustable\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorking Voltage:\u003c\/strong\u003e 4.75–5.25V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCurrent Consumption:\u003c\/strong\u003e ~350mA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAntenna Connection:\u003c\/strong\u003e SMA female (board) \/ SMA male (antenna)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePorts:\u003c\/strong\u003e GH 10P (Port 1) • USB Type-C (Port 2) • UART2 GH 6P (Port 3, RTCM input)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplications:\u003c\/strong\u003e Rover • Moving Baseline Rover • Base Station\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIncluded Cables\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eGH 10P cable — 150mm\u003c\/li\u003e\n\u003cli\u003eGH 10P cable — 400mm\u003c\/li\u003e\n\u003cli\u003eGH 10P to 6P cable — 300mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCompatible Autopilots\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePixhawk 4, 5X, 6X, 6C\u003c\/li\u003e\n\u003cli\u003eCube Orange, CubeOrange+, Cube Blue\u003c\/li\u003e\n\u003cli\u003eAll ArduPilot 4.4.0+ and PX4 1.14+ autopilots\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat’s in the Box\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1× H-RTK UM982 Module\u003c\/li\u003e\n\u003cli\u003e2× High Precision Helical Antennas\u003c\/li\u003e\n\u003cli\u003e2× Antenna Mounts\u003c\/li\u003e\n\u003cli\u003e2× SMA Cables (40cm each)\u003c\/li\u003e\n\u003cli\u003e2× 10-pin to 10-pin JST-GH Cables\u003c\/li\u003e\n\u003cli\u003e1× 10-pin to 6-pin JST-GH Cable\u003c\/li\u003e\n\u003cli\u003e1× 6-pin to 6-pin JST-GH Cable\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePerfect For\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eLarge UAVs and VTOLs requiring compass-free yaw in high-interference environments\u003c\/li\u003e\n\u003cli\u003ePrecision mapping and survey drones needing sub-centimeter RTK positioning\u003c\/li\u003e\n\u003cli\u003eAutonomous platforms with ArduPilot or PX4 autopilots\u003c\/li\u003e\n\u003cli\u003eEnterprise and defense UAV deployments where magnetic interference is a concern\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eFor enterprise, government, or volume orders, contact us at \u003cstrong\u003esales@thedroneflight.com\u003c\/strong\u003e.\u003c\/p\u003e","brand":"HolyBro","offers":[{"title":"Default Title","offer_id":54582318661772,"sku":"1005009812866783-H-RTK Unicore UM982","price":1577.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0579\/2019\/2652\/files\/S3f2018ee5f2e405a8fd38b4210065604Y.webp?v=1787889870","url":"https:\/\/thedroneflight.com\/products\/holybro-h-rtk-unicore-um982-dual-antenna-rtk-gps-moving-baseline-yaw-0-8cm-accuracy-20hz-pixhawk-uav","provider":"TheDroneFlight","version":"1.0","type":"link"}