WRTC (World Radiosport Team Championship) is the most prestigious global competition in amateur radio contesting and is often referred to as the Ham Radio Olympics (as it usually takes place once every 4 years). Its goal is to compare the skills of the world's best operators under maximum equality of conditions, with all teams using identical locations, antennas, and output power.

WRTC (World Radiosport Team Championship) je nejprestižnější světová soutěž v radioamatérském závodění a často bývá označována za olympiádu radioamatérů (protože se koná obvykle 1x za 4 roky). Jejím cílem je porovnat schopnosti nejlepších operátorů světa v maximálně rovných podmínkách, kdy všechny týmy využívají stejná stanoviště, antény a výkon.

Here are links to 3830, where you can find everything I wrote about the contest in English.

Following the success of last year’s M/2 “youth event,” we decided to hold it again this year. Interest—and actual participation—was even greater: a total of 18 operators (including 7 girls) took turns at the radios, 13 of whom were between the ages of 9 and 22.