Aircraft automatically transmit their position, speed, altitude and other interesting information with their ADS-B transponder. This data is primarily used for air traffic control, but also for analysis of aircraft movements by companies, associations and authorities.
Some aircraft does only send their callsign and no other data. For this purpose a large network of ADS-B receivers are needed on ground to multilaterate/triangulate the aircraft and find out their position, altitude, etc.
We are an European group of people interested in the observation of local and international air traffic. My responsibilities include project management, marketing, and technical administration.
Take a look at our Bratwurst ADS-B information website and become a member of our community! You can find the respective contact options on the linked website.
