11. WLPI-AM ceased operations in 1974 after maintenance problems developed with the carrier current equipment. 12. In 1952, students at North Dakota Agricultural College signed on KDSC, a carrier current station. 13. At this time the carrier current station adopted the new callsign WRCN, and programming was divided. 14. It started as KDLX in 1960 as a carrier current station and broadcast only in Northwest buildings. 15. It used carrier current AM in order to broadcast to the University's dorms and union building. 16. WBAU was originally called WALI, and broadcast entirely through carrier current at 640 on the AM dial. 17. The students launched the experimental radio station to study carrier currents , the subject of their thesis paper. 18. WVCW continued on carrier current AM at both 850 AM and later 640 AM until the early 2000s. 19. The management of WDBS did not want to be left behind with its now-outdated carrier current system. 20. Transmitters that use carrier current are very simple, making them an effective option for students interested in radio.
