Herelink is a remote controller, ground station, and wireless digital transmission system designed to be used with Autopilot, Ardupilot, or PX4 flight controllers. The Herelink remote controller supports AeroGCS. Herelink allows RC control, HD video, and telemetry data to be transmitted up to 20km between the ground station and the air unit. For the setup and configuration of the Herelink RC control and radio system, Herelink includes a specialized system settings app. Features of Herelink are as follows: