Here 4 is a professional High Precision Dual-band RTK Navigation module. It supports multiple GNSS options such as BeiDou, Galileo, GLONASS, GPS and QZSS.
The Here 4 uses advanced algorithms and multi-frequency DGNSS signals to quickly achieve an RTK Fix within seconds, providing reliable centimeter-level positioning. It also combines navigation and flight-control functionality with 8 PWM or BDSHOT outputs, RCIN, Hotshoe and camera trigger.
Features
- u-blox F9P high-precision dual-band RTK navigation module.
- Built-in STM32H7 processor for real-time processing and data optimization.
- Dual-band Taoglas antenna supporting L1 and L5 frequencies.
- Built-in Drone-ID feature; Blue version supports Drone-ID.
- Fast RTK convergence using multi-frequency DGNSS signals.
- Module size: 16 × 68 mm; weight: 60 g.
- ProfiLEDs with configurable display modes.
- CAN FD with high transmission rate.
- Built-in IMU; future firmware can support tightly coupled DGNSS-INS fusion.
Specifications
| GNSS module | NEO-F9P |
|---|---|
| Processor | STM32H757 |
| IMU sensor | ICM42688 + RM3100 |
| Barometer | MS5611 |
| Communication Protocol | DroneCAN 8Mbit/s |
| Receiver type | Dual-band GNSS high precision receiver |
| GNSS systems | GPS, GLONASS, Galileo, BeiDou + SBAS and QZSS |
| Satellite bands | B1I, B2a, E1B/C, E5a, L1C/A, L1OF, L5 |
| Navigation update rate (RTK) | Up to 20 Hz |
| Positioning accuracy | 0.01 m + 1 ppm CEP |
| Maximum speed | 500 m/s |
| RTK convergence time | < 10 sec |
| Acquisition | Cold start 25s; aided start 2s; hot start 2s |
| Sensitivity | Tracking & Navigation: –167 dBm; Cold: –148 dBm; Hot: –157 dBm; Reacquisition: –160 dBm |
| Antenna | Dual-band antenna |
| Protocols | NMEA, UBX binary, RTCM 3.3, SPARTN 2.0.1 |
| Anti-spoofing | Advanced anti-spoofing algorithm |

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