We have distributed five radio transmitters around the site that you can locate using directional antennas and radio receivers. We will show you how everything works, and then you're on your own. We have five antennas and receivers available. Just come to the ZTL village, and if a set of equipment is not in use, you're good to go. The system we use is called Draußenfuchs. You can find more information at https://draussenfuchs.de/. Just use your browser's translation function. This experience is free of charge, but if you'd like to donate £1/€1 to help cover our expenses, we'd really appreciate it.