I heard Radio Santa Beatriz on 1350 AM (actually on a clear split below 1350)  in early February 2012 in Lemmenjoki during LEM317. At that time the signal was rather weak, however both the AM and FM frequency was clearly announced. Later I also have managed to hear the station in my home QTH in Borgå. The station is part of Radiodifusora El Sur to which also e.g. Radio Las Vegas also in Cusco belongs. After several tries I finally got a confirmation on my reception from José Raul Tapia Acurio. Gracias José!