NRK's international radio transmissions, known as "Utenlandssendingen", began shortwave transmission in 1948. Initially broadcasting in Norwegian, English-language programs were added later. The service was discontinued on 1 January 2002. All NRK broadcasting activities on shortwave ceased on 1 January 2004. NRK's mediumwave transmitter at Kvitsøy on 1314 kHz used to be widely heard internationally and was one of the most commonly heard trans-Atlantic DX signals in eastern North America. The frequency carried a mixture of NRK's radio channels P1 and P2, and was called "Europakanalen" (literally "The Europe Channel"). However, these mediumwave transmissions were discontinued on 1 July 2006.