DO-219

DO-219 is a document published by RTCA (formerly Radio Technical Commission for Aeronautics), titled "Minimum Performance Standards for Airborne Radar Sensors Used for Meteorological Hazard Detection". It defines the minimum performance standards for airborne weather radar systems used to detect and display hazardous weather conditions, primarily convective weather such as thunderstorms. The document outlines the required capabilities of these radar systems in terms of range, accuracy, resolution, and reliability.

Compliance with DO-219 is often used as a basis for certification by aviation regulatory agencies, like the FAA (Federal Aviation Administration), for airborne weather radar equipment. The standards within DO-219 ensure that pilots have reliable information to avoid hazardous weather conditions, enhancing aviation safety. The standard addresses various performance criteria, including detection range, sensitivity to different types of precipitation, display resolution, and false alarm rates. It also covers testing procedures used to verify that radar systems meet the defined minimum performance levels. The document is typically updated periodically to reflect advancements in radar technology and evolving understanding of meteorological hazards.