CW90A - Special call sign for the conmemoration of the 90th Anniversary of the Uruguayan Radio Broadcasting November 6th, 1922, is the date on which culminates the Uruguayan radio broadcating founding process.
CW5O: First DXpedition of Radiogrupo Sur in 2014 On 31st January, 1st and 2nd. February, Radiogrupo Sur will be activation the special call sign CW5O, from Rincón del Bonete, specially from its air lighthouse, dam, museum, etc..