NEO 3 Pro GNSS DroneCAN Module
- Next-generation satellite receiver, u-blox M9N.
- Positioning accuracy up to 0.7 meters.
- Supports simultaneous reception of signals from four major satellite systems (BeiDou, Galileo, GLONASS, GPS).
- DroneCAN bus communication protocol.




Ublox M9N Satellite receiver
New generation satellite receiver Ublox M9N,The actual measurement can reach a maximum accuracy of 0.7m.


RM3100 industrial sensor
Using RM3100 industrial grade sensor, has better anti-interference performance
Simultaneous reception by the four satellite systems
Supports simultaneous reception of BeiDou, Galileo, Glonas, and GPS four satellite systems

GPS
GLONASS
Galileo
BeiDou

Triple filter design
NEO 3 Pro adopts SAW + LNA + SAW triple filter design, effectively avoiding the influence of remote control, data transmission, 4G signal on GPS positioning reception.
Specification
GNSS Receiver | u-blox M9N |
Processor | STM32F412 32bit Arm® Cortex®-M4 100MHz 512KB Flash 256KB RAM |
Mag | RM3100 |
Barometer | MS5611 |
Number of Concurrent GNSS | 4 |
Frequency Band | 4 |
Frequency Band | BeiDou: B1I. Galileo: E1B/C. GLONASS: L10F. GPS: L1C/A. |
GNSS Augmentation System | SBAS: WAAS, EGNOS, MSAS. QZSS: L1s (SAIF). Other: RTCM 3 injecttion. |
Accuracy | 1.5m (Real-world testing achieves up to 0.7m accuracy.) |
Number of Satellites | 32+ |
Navigation Update | 5Hz Default (25Hz Max) |
Filtering | SAW + LNA + SAW |
Anti-electromagnetic/Radio frequency protection | EMI + RFI |
Safety Switch | Physical Button |
Buzzer | Passive Buzzer |
Communication Protocol | DroneCAN |
Firmware | AP-Periph |
Support Controller | CUAV, Pixhawk etc. |
Support Firmware | Ardupilot, PX4 |
Operating Voltage | 4.75V ~ 5.3V |
Operating Temperature | -10℃ ~ 70℃ |
Dimensions | 60mm × 60mm × 16mm |
Weight | 33g |
- NEO 3 Pro level accuracy when the SBAS enhancement system is turned on, the nominal accuracy is 1.5m (default); when the SBAS enhancement system is turned off, it is 2.0m
- NEO 3 Pro supports RTCM3.3 injection, but does not support RTCM output; it can achieve pseudorange differential (meter-level positioning) but does not support carrier phase differential (RTK), and it needs a base station that supports RTCM3.3 output.
Dimensions chart

ArduPilot, Dronecode, and PX4 Long-Term Partners
CUAV Technology Co., Ltd. is a National High-Tech Enterprise and Guangdong Provincial Specialized, Sophisticated, Innovative SME that focuses on open-source unmanned system innovation technologies. It integrates R&D, production, sales, after-sales service, and technical support into a cohesive operation. The company maintains long-term collaborative partnerships with leading open-source organizations such as ArduPilot, Dronecode, and PX4.
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