This is the simplest Crystal Radio capable of receiving multiple radio stations. Radio amateurs have been making and using it for over a hundred years. The one used for recording the video was made by Dejan Momirov, one of the greatest enthusiasts and connoisseurs of this type of radio receiver. In Belgrade, using Momirov's antenna, which is 30+10 meters long, it is possible to receive six radio stations: Hungarian, Romanian, and Bulgarian. In the past, Radio Belgrade was exceptionally the loudest, but it is no longer available. That was one of the most powerful and oldest radio transmitters in Europe, just a few years younger than the BBC and Radio Paris.
