Here4 Multiband RTK GNSS
Here4 Multiband RTK GNSS is a professional high-precision multi-frequency differential positioning and navigation module, supporting Beidou, Galileo, GLONASS, GPS, QZSS satellite systems.
Here4 high precision drone GNSS is more than a simple GNSS module. It combines flight control and navigation functions into one device. With 8 PWM and BDSHOT outputs, RCIN, Hotshoe and camera trigger. Provide independent solutions for precise mapping and flight control.
Here4 Multiband RTK GNSS is a multifunctional GNSS receiver and compass board that supports RTK, suitable for The Cube series flight controllers or flight controllers that support Ardupilot Firmware & PX4 Firmware.
Here4 Multiband RTK GNSS Features
- Equipped with u-blox NEO-F9P L1/L5, a professional high-precision multi-frequency differential positioning and navigation module.
- Built-in STM32H757 dual-core processor, combination of RM3100 magnetic compass and ICM42688 Accelerometer. Through future firmware updates, Here 4 can achieve tightly coupled DGNSS-INS-fusing solutions.
- With flight control and navigation functions.
- Here 4 provides built-in Drone-ID feature.
*Blue version supports Drone-ID - DroneCAN FD communication protocol, real time, and high transmission rate.
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Centimeter-level high-precision positioning drone GNSS
Equipped with the u-blox NEO-F9P L1/L5 RTK Multi Constellation GNSS module, Fastest lock times of the standard Here GPS series.
The multi-band antenna deeply customized with Taoglas supports L1 and E5 frequency bands, and has the advantages of high gain, high sensitivity, high precision, and stable operation.
More onboard compute and MemsBuilt-in STM32H757 dual-core processor, The combination of the RM3100 magnetic compass and ICM42688 sensor has better performance in more applications.
Integrated module with multiple features
Here4 Multiband RTK GNSS is more than a GNSS module. It has both flight control and navigation capabilities. Fitted with 8 PWM or BDSHOT outputs, an RCIN, Hotshoe, and camera trigger, accurate mapping has never been more self-contained.
Supports further expansion/ customization
The reliable DRONECAN FD communication protocol ensures fast (8Mbps) and stable transmission.
Based on the AP-Periph open source platform, users can better carry out further development and customization.
Manufactured in Taiwan
Comparison of Here3 & Here3+ & Here4
| Model | Here 3 | Here3+ | Here4 |
|---|---|---|---|
| Receiver Type | u-blox high precision GNSS modules (M8P-2) | u-blox high precision GNSS modules (M8P-2) | u-blox high precision GNSS modules（NEO-F9P） |
| Satellite Constellation | GPS L1C/A, GLONASS L1OF, BeiDou B1I | GPS L1C/A, GLONASS L1OF, BeiDou B1I | B1I, B2a, E1B/C, E5a, L1C/A, L1OF, L5 |
| Positioning accuracy | 3D FIX: 2.5 m / RTK: 0.025 m | 3D FIX: 2.5 m / RTK: 0.025 m | 0.01 m + 1 ppm CEP |
| Processor | STM32F302 | STM32H757 | STM32H757 |
| IMU sensor | ICM20948 | ICM42688,RM3100 | ICM42688+RM3100 |
| Navigation Update Rate | 8 Hz | 8 Hz | up to 20 Hz |
| Communication Protocol | DroneCAN 1Mbit/s | DroneCAN 8Mbit/s | DroneCAN 8Mbit/s |
| Operating Temperature | -40℃ to 85℃ | -40℃ to 85℃ | -40℃ to 85℃ |
| Dimension | 68mmx68mmx16mm | 68mmx68mmx16mm | 16 x 68 mm |
| Weight | 48.8g | 51.8g | 60g (with cable) |
Besides CubePilot Here4 high precision drone GNSS, the New GNSS GPS RTK for drone Here 3+ with iStand CAN GNSS is on sale on the World drone market.
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