MicoAir MA-RTK-AIR-982 UM982 Triple-Band (L1+L2+L5) RTK GNSS Module — Dual-Antenna Heading, 20Hz, for ArduPilot / PX4

📘 Documentation & Guides
MA-RTK Series — Full User Manual — specs, pinout, wiring, ArduPilot / PX4 parameters
RTK Setup Guide — base station, corrections, and dual-antenna heading walkthrough
What Is RTK? — centimeter GPS explained in plain English

The flagship RTK rover — with GNSS heading

The MA-RTK-AIR-982 is the full-performance rover of the MicoAir RTK family, built on the Unicore UM982 triple-band receiver. Tracking L1 + L2 + L5 across GPS, BeiDou, GLONASS, Galileo and QZSS (50+ satellites in RTK mode), it reaches a centimeter FIX faster and holds it more robustly near obstructions than any dual-band module — with 0.8 cm + 1 ppm horizontal accuracy at up to 20 Hz.

It is also the only module in the family with dual-antenna GNSS heading: choose the Dual-Antenna Kit and the module measures true yaw from satellite geometry — immune to motor current, steel structures and geomagnetic storms. No compass dance, no yaw drift next to rebar. (ArduPilot moving-baseline and PX4 GPS-yaw are both supported.)

Key specifications

• Receiver: Unicore UM982 · L1+L2+L5 · NMEA-0183 output
• RTK accuracy: 0.8 cm + 1 ppm (H) / 1.5 cm + 1 ppm (V) · 20 Hz max
• Onboard IST8310 compass (I2C) · CNC aluminum shell
• Antennas: 2 × MMCX (ANT1/ANT2) + SMA adapter · Dual-antenna baseline ≥ 20 cm for heading
• Interfaces: GH1.25-6P (FC UART+I2C) + GH1.25-4P (direct RTCM input from a telemetry radio)
• 4–5 V · 700 mW · 39 × 31.5 × 11 mm · 20 g
• Firmware: ArduPilot ≥ 4.5 / PX4

In the box

Single Antenna: module, quad-helix antenna, GH1.25-6P cable 20 cm, SH1.25-6P FC cable 20 cm, GH1.25-4P cable 10 cm.
Dual-Antenna Kit: module, cables as above, plus 2 × quad-helix antenna with 40 cm feeder line and support rod — everything needed for GNSS heading.

Complete the system

RTK needs a correction source: pair with the MicoAir MA-RTK-BASE station kit (one base serves unlimited rovers), or any RTCM3 / NTRIP source. For a laptop-free field setup add an LR900-F telemetry radio pair for direct RTCM broadcast.

🚚 Ships worldwide from our Hong Kong warehouse.