ANDRICOS Dual-Antenna RTK GNSS Module — Holybro H-RTK Unicore UM982 with Moving Baseline Yaw, Helical Antennas, USB-C, JST-GH Cables & Autopilot Integration

Selected by ANDRICOS. Supplier listing references the Holybro H-RTK Unicore UM982 platform.

The ANDRICOS Dual-Antenna RTK GNSS Module — Holybro H-RTK Unicore UM982 is a specialist GNSS positioning module designed for drone autopilot systems, robotics, UAV development, moving-baseline heading, RTK positioning workflows, and advanced vehicle-navigation integration.

Built around the Unicore UM982 GNSS module, it supports dual-antenna moving baseline yaw, high-precision positioning, RTK correction workflows, multi-constellation satellite tracking, USB-C connection, JST-GH autopilot cabling, and helical antenna setup. It is designed for users working with PX4, ArduPilot, ground-control software, telemetry workflows, rover/base configurations, and advanced autopilot positioning systems.

This product is not a plug-and-play consumer GPS tracker, toy drone accessory, safety-certified aviation navigation system, or guaranteed autonomous-flight solution. It is a technical integration component for experienced builders, developers, survey-drone users, robotics teams, and autopilot users who understand GNSS setup, firmware compatibility, RTK correction, cable routing, antenna mounting, and flight-controller configuration.

• Holybro H-RTK Unicore UM982 platform listed by supplier
• Dual-antenna RTK GNSS module
• Moving baseline yaw / GPS heading support listed by supplier
• Designed for autopilot heading without relying only on magnetometer data
• Suitable for PX4 and ArduPilot workflows listed by supplier
• Unicore UM982 GNSS module listed by supplier
• Multi-constellation GNSS support
• GPS, GLONASS, BeiDou, Galileo, and QZSS support listed by supplier
• RTK positioning adjustment support listed by supplier
• 20Hz positioning and heading update rate listed by supplier
• 20Hz raw data observation listed by supplier
• USB Type-C port
• JST-GH cable support
• SMA antenna connection
• Includes two high-precision helical antennas listed by supplier
• Includes antenna mounts and SMA cables listed by supplier
• Includes magnetometer, LED, and safety switch button listed by supplier
• Can function as rover, moving-baseline rover, or base station depending on setup
• Suitable for drone autopilot integration, robotics, UAV mapping, RTK workflows, GNSS heading, and high-interference environments

Important authenticity note:
The listing references Holybro H-RTK Unicore UM982, but the supplier brand field shows “None.” ANDRICOS should verify authenticity, packaging, serial details, documentation, firmware support, and supplier reliability before publishing this as a Holybro product.

Important compatibility note:
Customers must confirm compatibility with their flight controller, PX4 or ArduPilot version, ground-control software, cable pinout, firmware, antenna mounting distance, telemetry setup, RTCM correction source, and power supply before purchase.

Important setup note:
The supplier notes that PX4 1.14 and ArduPilot 4.4.0 or later support the changed Status LED driver. Customers using older firmware may need updates or manual configuration.

Important RTK and heading note:
Moving baseline yaw and RTK performance depend on antenna placement, baseline length, firmware setup, satellite visibility, correction source, cable configuration, vibration, multipath interference, electrical noise, vehicle layout, and operator setup. Do not treat heading or centimetre-level positioning as guaranteed in every environment.

Important use note:
This product is not a certified aircraft navigation system, flight safety system, collision-avoidance device, or autonomous-flight guarantee. Users remain responsible for safe vehicle setup, legal operation, flight testing, redundancy planning, and compliance with local UAV regulations.

Materials:
• GNSS receiver board
• Unicore UM982 GNSS module listed by supplier
• Composite material listed by supplier
• Dual high-precision helical antennas
• SMA antenna cables
• JST-GH cables
• USB-C port
• Magnetometer
• LED and safety switch button
• Autopilot interface components

Care instructions:
• Read the Holybro setup guide and autopilot documentation before installation.
• Confirm cable pinout before connecting to a flight controller.
• Use only compatible voltage and connector setups.
• Mount antennas securely and with suitable separation for moving baseline yaw.
• Keep antennas clear of heavy electrical interference where possible.
• Avoid mounting near high-current wiring, motors, ESCs, carbon obstruction, or metallic structures without testing signal quality.
• Do not crush, bend, or strain SMA and JST-GH cables.
• Protect the module from water, dust, vibration, and impact unless housed properly.
• Test thoroughly on the ground before any flight use.
• Do not rely on this module as the only safety or navigation layer.

This product may be fulfilled through an international supply partner. Delivery times may vary depending on stock availability, selected version, customs processing, destination, and courier route.
If your order contains multiple items, they may arrive separately.
Returns are handled in line with the ANDRICOS Returns Policy. Technical drone and GNSS components should be returned unused, undamaged, unmodified, unsoldered, uninstalled, and with all original antennas, mounts, cables, packaging, labels, and documentation where supplied.
For faulty, damaged, incorrect, or missing items, contact ANDRICOS support with your order number, selected version, photos, serial details where available, and a clear description of the issue.

• Product type: Dual-antenna RTK GNSS module
• Supplier platform reference: Holybro H-RTK Unicore UM982
• Model number listed by supplier: Holybro H-RTK Unicore UM982
• GNSS module: Unicore UM982
• Application listed by supplier: Rover, moving baseline rover, base station
• Compass listed by supplier: IST8310
• GNSS support listed by supplier: BDS, GPS, GLONASS, Galileo, QZSS
• BDS signals listed by supplier: B1I, B2I, B3I
• GPS signals listed by supplier: L1C/A, L2P(Y), L2C, L5
• GLONASS signals listed by supplier: L1, L2
• Galileo signals listed by supplier: E1, E5a, E5b
• QZSS signals listed by supplier: L1, L2, L5
• Antenna peak gain listed by supplier: 2dBi maximum
• LNA gain listed by supplier: 33 ± 2dB
• Cold start listed by supplier: 30 seconds or less
• Hot start listed by supplier: 5 seconds or less
• RTK Survey-In time listed by supplier: 5 minutes or less at 2.0m CEP
• Data/update rate listed by supplier: 20Hz positioning and heading, 20Hz raw data observation
• Ports listed by supplier: GH1.25 10-pin, USB Type-C, UART 2 GH1.25 6-pin
• Baud rate listed by supplier: Adjustable, 230400 5Hz default
• Working voltage: 4.75V to 5.25V
• Current consumption: Approx. 350mA
• Board dimensions: 34.8 × 58.9 × 14.4mm
• Antenna diameter: 27.5mm
• Antenna height: 59mm
• Weight: 37.9g without antennas
• Battery included: No
• Material listed by supplier: Composite material
• Quantity: 1 piece
• Origin listed by supplier: Mainland China
• High-concerned chemical: None listed by supplier

Package includes:
• H-RTK UM982 module × 1
• High-precision helical antennas × 2
• Antenna mounts × 2
• SMA cables, 40cm × 2
• 10-pin to 10-pin JST-GH cables × 2
• 10-pin to 6-pin JST-GH cable × 1
• 6-pin to 6-pin JST-GH cable × 1