Special event stations in Russia will be on the air until June 16 as part of the international scientific-educational radio marathon called “Inventors of Telecommunications,” established by the Russian Geographical Society and supported by radio clubs and Amateur Radio operators. There will be awards and certificates.

Each RT73-prefix station represents a historical figure in the area of telecommunications or electronics. For example, RT73BA represents Alexander Graham Bell, RT73EA represents Edwin Howard Armstrong, RT73VZ represents Vladimir Kosmich Zworykin, and RT73NT represents Nikola Tesla. — Thanks to The Daily DX