Swiss 90th Anniversary Special Event Callsign
/The Swiss national radio society Union Schweizerischer Kurzwellen Amateure (USKA) will celebrate its 90th anniversary in 2019.
Throughout the whole year, HB9-stations may use the prefix HB90, together with their suffix; and HB3-stations likewise the prefix HB30.
More information - https://www.uska.ch/