Holybro SiK Telemetry Radio - Long RangeThis Holybro SiK Long Range Telemetry Radio is a small, light, and inexpensive open source radio platform with a maximum 50 kilometres range (outdoors, line of sight range). This radio is plug and play, ready for all Pixhawk Standard and other similar flight controllers, providing the easiest way to set up a telemetry connection between your controller and a ground station. It uses open source firmware that has been specially designed to work well