Neterra Ltd is announcing the inauguration of an amateur radio diploma, commemorating its 20 years anniversary. The aim of the diploma is to promote amateur radio, as well as increase global awareness of Neterra's Sofia Data Center, cloud services and TV channel processing and distribution platforms. The diploma is granted for achieving a certain number of points accumulated through confirmed contacts with the special call signs LZ20N and LZ20NET. During the year 2016 Neterra will organize regular commemoration days when activators will work to establish radio contacts with the world using different combinations of bands and modulation. The participants with most connections will receive special awards. More information about the diploma at http://www.neterra.net/LZ20N Good luck, participating! Neven Dilkov, LZ1COM