The HereLink HD Digital Video Transmitter is a sophisticated video transmission and control system, introduced at the 2018 ArduPilot Conference. It is designed to offer high-definition video feeds and full control over drone operations, particularly for professional and industrial applications. HereLink integrates multiple functionalities in one system, allowing real-time FPV (First-Person View), telemetry data transmission, and bi-directional communication with a remote control unit equipped with a touchscreen display. 
 
The HereLink HD Digital Video Transmitter is WPC ETA approved, meaning it has been certified by the Wireless Planning & Coordination (WPC) wing of India's Department of Telecommunications (DoT). The Equipment Type Approval (ETA) ensures that the device complies with India's regulatory standards for wireless communication.
This approval is necessary for operating wireless devices that use unlicensed frequency bands, like 2.4 GHz, ensuring the device does not interfere with other licensed services and is safe for use within the country.
For users in India, the WPC ETA approval confirms that the HereLink system can legally be used without the need for additional licenses, offering peace of mind regarding regulatory compliance.
 
Key Features:
Advanced HD Video Transmission: HereLink provides high-definition video transmission from the drone to the ground station, enabling real-time monitoring with high clarity. It supports dual camera operation with micro HDMI inputs.
Integrated Control System: The system comes with a lightweight onboard transmitter module and a ground control unit that features a 5.4-inch touchscreen running open-source QGround Control software. The touchscreen interface allows users to monitor, control, and configure drone operations.
Dual Control and Joysticks: The HereLink remote offers full control over the drone via joysticks, buttons, and control wheels, providing intuitive handling for various operations, including camera movement and flight maneuvers.
Mavlink Input for Bi-Directional Communication: The system supports Mavlink protocol, enabling two-way communication between the drone and ground station. This facilitates control over the drone's autopilot and real-time feedback on telemetry data.
Open-Source QGround Control: The ground control system operates on QGround Control software, allowing customization, mission planning, and flexible integration with different drone systems, especially those running ArduPilot or PX4.
Compatibility: HereLink supports various autopilots, including Pixhawk, and other controllers running Ardupilot or PX4. This makes it highly versatile for different UAV systems and applications.
Beta Testing Phase: Since HereLink is still in beta testing, users can expect periodic updates and improvements based on community feedback. However, early adopters might encounter some configuration challenges due to its evolving status.
WPC ETA Approval for India: HereLink is WPC ETA approved, which certifies its compliance with wireless communication regulations in India, making it a legal and safe option for use in the country.
 
Specifications:
Screen: 5.4-inch touchscreen display
Video Input: Micro HDMI for dual camera operation
Compatibility: Pixhawk, ArduPilot, PX4-compatible autopilots
Communication Protocol: Mavlink for telemetry and bi-directional communication
Operating System: Runs on QGround Control (open-source)
Control Features: Joysticks, buttons, control wheels for seamless drone operation
Regulatory Compliance: WPC ETA approval (India)
 
Technical Specifications:
System-on-Chip (SOC):
4 * Cortex A53, 2.2GHz
4 * Cortex A53, 1.4GHz
Graphics Processing Unit (GPU):
4 Core, Mali-T860 (capable of handling high-definition video processing)
SDR (Software-Defined Radio):
A7 + DSP (Digital Signal Processing for efficient signal management)
Memory:
Air Unit: LPDDR3 1GB
Controller: LPDDR3 2GB (sufficient for running onboard processes and smooth operation)
Storage:
Air Unit: EMMC 4GB
Controller: EMMC 8GB (offers adequate storage for data logging, firmware, and configurations)
Transmission Distance:
FCC Standard: Up to 20km
CE / SRRC / MIC Standard: Up to 12km (long-range capabilities for uninterrupted communication over vast distances)
Video Delay:
110 ms (provides minimal latency for real-time video feed and control)
Image Resolution:
720p @ 30fps (ideal for low-latency applications)
1080p @ 30/60fps (offers higher resolution for clearer imagery)
Frequency Band:
2.4GHz ISM (Industry, Scientific, and Medical band; globally accepted for unlicensed use)
Receive Sensitivity:
-99 dBm @ 20MHz BW (ensures strong reception even with weaker signals for reliable communication)
Recovery Time:
< 1s (rapid recovery in case of signal loss, ensuring consistent video transmission and control)
 
Package Includes:
 
HERELINK CONTROLLER 1.1
1x Herelink Controller Unit V1.1
1x Herelink Omni-directional Antenna
1x Herelink Directional Antenna
2x Herelink Controller Joystick
1x Herelink Set up tips card
 
HERELINK AIR UNIT 1.1
1x Herelink HD Air Unit V1.1
1x Herelink Silicone Ring Set
2x Herelink Taoglas Antenna
1x Herelink Set up tips card
1x Herelink Mounting Plate
1x Herelink HDMI Cable
1x Herelink Screw Set
1x Herelink Cable Set
1x Herelink Fan