FK-A3 GNSS

The FK-A3 is a compact u-blox M10 GNSS + compass module for FPV and fixed-wing builds — 20 × 20 mm, about 8 grams, tracking up to 32 satellites across four constellations.

- u-blox M10050 receiver: GPS · GLONASS · BeiDou · Galileo
- QMC5883L compass for heading
- 1.5 m CEP positioning · 0.3° heading accuracy
- 1–10 Hz update rate, NMEA 0183 / UBX output
- SH1.0-6P connector, 3.6–5.5 V supply

Key specs:
Receiver: u-blox M10050 · up to 32 satellites
Constellations: GPS · GLONASS · BeiDou · Galileo
Compass: QMC5883L
Accuracy: 1.5 m CEP · heading 0.3°
Update rate: 1–10 Hz · Protocols: NMEA 0183 / UBX
Supply: 3.6–5.5 V · 40 mA @ 5 V
Size & weight: 20 × 20 × 8.4 mm · ≈8 g

In the box:
1× M10G-5883 GPS compass module
1× SH1.0-6P cable (160 mm)

Full pinout, wiring, and electrical data: see the spec sheet on this page.