Identifying only as "AM 1160" this station was kind of a mystery for several weeks, until Henrik Klemetz listened to a recording and used his investigation skills.
Having found the correct station, the reply from Luis Occhi, Gerente de Programación y Producción, came quickly. He attached a perfect QSL letter and two sound clips, of the station ID and of their signing off ceremony.
Thank you, Henrik, and thank you, Luis!
LU32 is another great memory from this fantastic DX summer!