Las 40 on 1450, has been heard a handful times in the Nordic countries. Probably the first logging in Finland was made during the LEM243 expedition (JEÖ&PÄ) in February 2007. I noticed the station again during LEM354 on February 24. No sign of the channels ARG dominant R El Sol, Quilmes, BA at that time. Las 40 carried Argentinian folklore programming and the identity was nailed by the YL ID “Música Argentina, AM Las 40, Folclórica de Argentina”.
Thanks to Henrik Klemetz, I rapidly got a confirmation from Andy Peredes, owner of the FM station Radio Activa San Juan on 88.7 FM and at the same time working at Las 40. Andy tells that the station´s effective power presently is 7 kW which is one explanation that the station has been heard recently (WRTH2015 lists the power to 1/0,25 kW!). Andy also mentions, that the station started it’s transmissions on April 2, 2001 on both 140 and FM 105.1. Andy is married and has two daughters aged 10 and 4. He included some 40 pictures of the station, of the city and of his family. Muchisimas gracias por su amabilidad Andy!