WXTJ-LP was founded by the staff of WTJU (91.1 FM) in 2013 as a response to low and declining student involvement at the University of Virginia's long-established college radio station. WXTJ is now entirely administered and programmed by students, with WTJU's staff providing only studio space and technical support.[7]
The station first went live on the Internet in the fall of 2013 under the fictitious callsign WTJX. A planned Part 15 AM transmitter on 1620 kHz while the station raised money for an FM signal was publicized, but never materialized. WXTJ gained its current callsign as a side effect of applying for an LPFM license in 2015. Although the suffixed callsign WTJX-LP is not in use, FCC rules require approval if any station is already using the base callsign – in this case, WTJX-TV of Charlotte Amalie, U.S. Virgin Islands, who expressed their opposition.[7][8]