LOW-POWER FM RADIO To help communities or organizations set up LPFM stations, some nonprofit groups like the Prometheus Radio Project provide support in obtaining government licenses as well as actually constructing stations. For construction endeavors known as “barn raisings,” the Prometheus project will send volunteers “to raise the antenna mast, build the studio, and flip on the station switch.” Shown above is the barn raising for station WRFU 104.5 FM in Urbana, Illinois.