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The best radio amateur in the world is from Craiova. His name is Ștefan Radu, he is 41 years old, he is an IT engineer by profession and he won first place in the shortwave championship, telephony category, low power, in Romania, Europe and in the world. Ștefan Radu has been doing amateur radio for 17 years. 642 radio amateurs from over 100 countries participated in the 2022 championship. For the champion from Craiova, the competitions represent a permanent challenge and improvement from year to year. Radio amateurs must have knowledge in several fields: mathematics, physics, electrical engineering, electronics, astronomy, geography and, of course, a foreign language. They must always know how radio waves propagate and how to orient the antenna towards the area of interest. The equipment of the champion from Craiova costs between 10 and 20 thousand euros and is not among the most advanced. In addition to the necessary equipment, a radio amateur must obtain authorization from the National Radiocommunications Authority after passing an exam. The USA has the largest number of radio amateurs (800 thousand), Japan 400 thousand and Romania between 3-5 thousand active. There are several million radio amateurs in the world who can communicate with each other, regardless of the distances they are from each other.