Product overview
The CUAV C-RTK 3 X20P GNSS Module integrates satellite positioning and magnetic sensing for civilian unmanned systems, agricultural machinery navigation, robots and industrial automation. It combines a u-blox X20 full-band RTK receiver, an STM32H523 processor and an RM3100 three-axis electronic compass. The module supports concurrent reception of GPS, Galileo, BeiDou, GLONASS, QZSS and NavIC across L1, L2, L5, L6 and L-band. Its RTK/PPP-RTK positioning capability is specified at centimeter level, with a maximum navigation update rate of 25 Hz.
Host integration interfaces include DroneCAN/CAN FD, UART and USB, with compatibility for u-blox AssistNow Live Orbits, PointPerfect and SBAS positioning assistance and correction services. The module measures 52 × 48.5 × 16.5 mm including screw holes, and weighs 30 g excluding the antenna and feeder cable. Its specified operating supply is 4.75–5.3 V at 200 mA. Listed configuration options comprise a rover station and a base station, each including an antenna; the product is marked out of stock.
The specified operating temperature range is −15 to +85 °C. A built-in spectrum analyzer monitors radio-frequency interference in real time and adjusts reception strategy, while Galileo OSNMA support enables navigation message authentication. Secure boot restricts firmware execution to code signed by u-blox, and the storage design includes an encrypted area. These features combine interference monitoring, message authentication and firmware protection within the positioning module, alongside its satellite receiver and electronic compass.
Specifications
| Specification | Value & conditions |
|---|---|
| Processor | STM32H5; main frequency 280 MHz; flash 512 KB; RAM 128 KB |
| Hardware channels | 672 pcs |
| Maximum update rate | 25 Hz |
| Built-in electronic compass | RM3100 |
| Operating voltage | 4.75–5.3 V200 mA. |
| Module dimensions | 52 × 48.5 × 16.5 mmIncludes screw holes. |
| Module weight | 30 gExcludes antenna and feeder cable. |
| Operating temperature | −15 to +85 °C |
| Additional listed weight | 0.5 kg |
| Additional listed dimensions | 10 × 10 × 5 cm |
| Supplied configuration options | Rover station or base station, each including an antennaBoth station options include an antenna. |
| Integrated architecture | U-blox X20 RTK full-band receiver, RM3100 electronic compass and STM32H5 processor |
| Precision positioning capability | Centimeter-level positioningRTK/PPP-RTK positioning. |
| Frequency bands and constellations | L1, L2, L5, L6 and L-band; concurrent GPS, Galileo, BeiDou, GLONASS, QZSS and NavIC reception |
| Communication support | DroneCAN/CAN FD |
| Host interface methods | DroneCAN, UART and USB |
| Positioning assistance and correction services | U-blox AssistNow Live Orbits, PointPerfect and SBAS |
| Vibration resistance | MIL-STD-810G7.7 g RMS. |
| Noise figure | As low as 6.5 dBL1/B1/E1 bands. |
| RF interference monitoring | Built-in spectrum analyzer with real-time RF interference monitoring and reception adjustment |
| Navigation message authentication | Galileo OSNMAGalileo navigation messages. |
| Firmware and storage protection | Secure boot and encrypted storageOnly legitimate firmware signed by u-blox executes. |
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