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HEX Here4 Open Source Drone High-Precision GPS GNSS Module RTK


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Here 4 is a professional High Precision Dual-band RTK Navigation module.$320
It supports multiple GNSS options such as BeiDou, Galileo, GLONASS, GPS, QZSS.
The Here 4 utilizes advanced algorithms and multi-frequency DGNSS signals
to quickly achieve an RTK Fix within seconds. This results in highly
reliable positioning at an accuracy within centimeters.
The Here 4 goes beyond being a simple GNSS module. It combines flight
control and navigation functionalities into a single device. With 8 PWM
or BDSHOT outputs, an RCIN, Hotshoe, and camera trigger, it offers a
self-contained solution for accurate mapping and precise control capabilities.
- Equipped with u-blox F9P, a professional
high precision Dual-band RTK navigation module.
- Powerful processing performance provided by a
built-in STM32H7 chip. It offers real-time processing
and data optimization, and Unmanned Industry standard AP_Periph Firmware.
- The tailor-made Dual-band antenna from Taoglas supports
L1and L5 frequencies. It features high gain, high sensitivity, and high stability.
- Here 4 provides built-in Drone-ID feature.
*Blue version supports Drone-ID
- Here 4 uses multi-frequency DGNSS signals with advanced algorithms.
This allows fast convergence to an RTK Fix, achieving more reliable
and stable centimeter level positioning.
- The Here 4 module is 16 x 68mm and 60g.
- LED embedded with ProfiLEDs. Built-in multiple display modes
for notification or navigation signals. Display modes can be
selected according to specific scenarios via
parameters or onboard Lua Scripting.
- CAN FD, real time, and high transmission rate.
- Built-in IMU. Through future firmware updates,
Here 4 can achieve tightly coupled DGNSS-INS-fusing solutions.
Product Details
GNSS module:NEO-F9P
IMU sensor:ICM42688+RM3100
Communication Protocol:DroneCAN 8Mbit/s
Receiver type:Dual-band GNSS high precision receiver
GNSS systems:GPS, GLONASS, Galileo and BeiDou + SBAS and QZSS
Satellite bands:B1I, B2a, E1B/C, E5a, L1C/A, L1OF, L5
Maximum GNSS systems:4
Navigation update rate (RTK):up to 20 Hz
Positioning accuracy:0.01 m + 1 ppm CEP
Maximum speed:500 m/s
Convergence time (RTK):< 10 sec
Acquisition:Cold starts 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 antenna
Protocols:NMEA?UBX binary?RTCM 3.3?SPARTN 2.0.1
Anti-spoofing:Advanced anti-spoofing algorithms
CAN:x2(Current firmware only supports CAN1-green?blue?white?grey)
Working Temperature:-40 °C to +85 °C
Size:16 x 68 mm
Weight:60g (with cable)
Item Packing
HEX Here4 GPS GNSS Module x 1
HEX Here4 Open Source Drone High-Precision Differential GPS GNSS Module RTK Pixhawk
HEX Here4 Open Source Drone High-Precision Differential GPS GNSS Module RTK Pixhawk
HEX Here4 Open Source Drone High-Precision Differential GPS GNSS Module RTK Pixhawk
HEX Here4 Open Source Drone High-Precision Differential GPS GNSS Module RTK Pixhawk
  • 100 Units in Stock

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This product was added to our catalog on Tuesday 18 July, 2023.


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