Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. XFM is a student radio of Technical University of Denmark. It is run mostly by volunteers studying at DTU. The station is made up from two different organisations, XFM Lyngby and XFM København, which broadcast on the frequencies 107.4 MHz and 95.5 MHz in Lyngby and Copenhagen, respectively. It was founded in February 1987 with support from the student association at DTU, Polyteknisk Forening and the dormitories around DTU. Originally it was called Radio Radiator, but soon changed its name to Radio NRG and later to XFM. XFM is also formally known as ''De Ingeniørstuderendes Lokalradio i Lyngby-Taarbæk''. The station is run by volunteers, but has in most of the time in its history employed one or two persons that take care of administrative work. Most of the volunteers are current or former students at DTU, but some come from other universities in the area.