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

Setting it up with an AI assistant? Read our AI setup guide first. It shows you how to point ChatGPT, Claude or Gemini at the official manual for this product, so the answers come from the real pinout and parameter names instead of guesses.

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 × 16 mm (11 mm body, 16 mm including the SMA connector) · 20 g (without antenna)
• 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.