Here4 Multiband RTK GNSS

Here4 Multiband RTK GNSSProduct Overview: The Here 4 is a high precision, dual band RTK navigation module, designed for professional use. It supports multiple global navigation satellite systems (GNSS) such as BeiDou, Galileo, GLONASS, GPS, and QZSS, providing reliable centimeter level accuracy. Utilizing advanced algorithms and multi frequency DGNSS signals, the Here 4 achieves an RTK fix in seconds, offering exceptional precision and stability. More than just a GNSS

Product Overview:

The Here 4 is a high-precision, dual-band RTK navigation module, designed for professional use. It supports multiple global navigation satellite systems (GNSS) such as BeiDou, Galileo, GLONASS, GPS, and QZSS, providing reliable centimeter-level accuracy. Utilizing advanced algorithms and multi-frequency DGNSS signals, the Here 4 achieves an RTK fix in seconds, offering exceptional precision and stability.

More than just a GNSS module, the Here 4 integrates flight control and navigation functionalities into one compact device. With 8 PWM or BDSHOT outputs, RCIN, hotshoe, and camera trigger, it offers a complete solution for both accurate mapping and precise control operations.

Key Features:

1. u-blox F9P Dual-band RTK Navigation Module: Delivers high-precision, dual-band GNSS performance.

2. Powerful Processing: Built-in STM32H7 chip ensures real-time data processing and optimization, running on the AP_Periph firmware standard used in the unmanned industry.

3. High-performance Dual-band Antenna: Tailor-made by Taoglas, supporting L1 and L5 frequencies, offering high gain, sensitivity, and stability.

4. Blue Version with Drone-ID Support: Adds compliance for Drone-ID.

5. Fast RTK Fix: Multi-frequency DGNSS signals and advanced algorithms enable quick RTK convergence, achieving stable, centimeter-level accuracy.

6. Compact & Lightweight: The module measures 16 x 68mm and weighs just 60g.

7. ProfiLED Embedded Display: Built-in LED system with multiple display modes for notifications or navigation signals, customizable via parameters or onboard Lua scripting.

8. High-Speed CAN FD Communication: Real-time data transmission with high bandwidth.

9. Built-in IMU: With future firmware updates, the Here 4 will support tightly coupled DGNSS-INS-fused positioning solutions for enhanced precision.

10. Integrated Flight Control & Navigation: The module offers more than just GNSS capabilities, with 8 PWM/BDSHOT outputs, RCIN, hotshoe, and camera trigger functionalities, making it a self-contained solution for accurate mapping and control.

11. Expandable & Customizable: The DroneCAN FD communication protocol supports fast (8Mbps) and stable transmission, and the open-source AP-Periph platform allows for further development and customization.

Specifications:

• GNSS Module: u-blox NEO-F9P
• Processor: STM32H757 dual-core
• 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, QZSS
• Satellite Bands: B1I, B2a, E1B/C, E5a, L1C/A, L1OF, L5
• Max GNSS Systems Supported: 4
• Navigation Update Rate (RTK): Up to 20 Hz
• Positioning Accuracy: 0.01m + 1ppm CEP
• Max Speed: 500 m/s
• RTK Convergence Time: <10 seconds
• Acquisition Time: Cold start: 25s, Aided start: 2s, Hot start: 2s
• Sensitivity:
  • Tracking & Navigation: –167 dBm
  • Cold Starts: –148 dBm
  • Hot Starts: –157 dBm
  • Reacquisition: –160 dBm
• Antenna: Dual-band
• Supported Protocols: NMEA, UBX binary, RTCM 3.3, SPARTN 2.0.1
• Anti-Spoofing: Advanced anti-spoofing algorithms

The Here 4 combines robust GNSS capabilities, flight control, and navigation in a compact, high-performance module, making it ideal for precise, high-accuracy applications.