In 2006, the founders of Flightradar24 began to set up ADS-B receivers in Europe, and later all over the world. This granted them access to the unencrypted data sent by a large number of planes. The incoming information was uploaded directly to the internet and visualised on the Flightradar24 website. Nevertheless, the name is a little misleading, as the technology used has very little in common with a radar in the conventional sense of the word. Radar is usually used by airports and military reconnaissance facilities to actively detect flying objects. This means that machines which do not emit any signals can also be detected. The result, however, is very similar, which is why the name Flightradar24 is ultimately still suitable. All recorded aircraft movements are visualised on a map. If you want to access the data provided by Flightradar24, then all that you require is an internet connection and a device on which to view the data. The website can be viewed on a PC or laptop, or just as easily on a tablet or smartphone – a dedicated App is available for mobile devices. The only requirement is having Java and Flash activated on your browser, as these are required in order to display the interactive map. If all of these requirements are met, upon opening the website you will be greeted by a map area with a multitude of yellow symbols, each of which represents an aircraft in flight. What initially looks like a disorderly and chaotic ant colony is actually the current air traffic over Europe, Germany or America. The region displayed varies based on the map area setting. If you’re ready, you can start tracking flights straight away. Using Flightradar24 is comparatively simple. There are nevertheless various tools for controlling the map, which you should familiarise yourself with step by step. Eventually you will be able to navigate through the programme confidently and without even thinking about it. In order to give yourself an overview and familiarise yourself with navigating around the map, you should first of all resize your chosen map area. Typically a section of airspace covering a very broad region around your location is usually displayed first. Clicking on the ‘Magnify’ button, represented by a plus (+) icon, will make the section smaller. This reduces the number of aircraft displayed and immediately gives you a clearer view. When using Flightradar24 on a mobile device, you can zoom in the usual way using the touch screen. To move the map section further North, South, East or West, click and hold on the map with the mouse or on the touch screen and drag it accordingly. You have now adjusted the map to track the particularly flight that you are interested in. To view the details for a particular aeroplane, click on the corresponding symbol on the Flightradar24 interactive map. This opens an information window with a number of interesting details. This allows you to see, for example, which cities the plane is flying between. The airline, aircraft type and flight number are also displayed.
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