The Sentinel radio, was born from the need of the population of Ollagüe, because in this commune no national radio stations were heard, only from neighboring countries and to inform our inhabitants of what to do communal, but a cultural space has also been developed and environmental, has been very useful for the students of our school San Antonio de Padua, since through the radio they have been able to improve their way of expressing themselves towards the population. They have also been a means of entertainment for adults and youth.