Cultural event
Containing a treasure trove of rare pre-war recordings set up by Vault Tec during one of their publicity stunts, it was intended to show off the culture they meant to spread across the cosmos. Doubling as a beacon for those working outside the Crawler in the poor visibility, they could now use a pip boy or modified radio receiver of any kind to find their way home. Announcements could also be made for those that had trouble with the public terminals, and a new highly desirable job could be leveraged or raffled off to boost morale.