High Quality Content by WIKIPEDIA articles! RTÉ Transmission Network Limited (RTÉNL) is a wholly owned subsidiary of Raidió Teilifís Éireann which runs Ireland's principal terrestrial television and radio broadcast signal transmission networks. They operate 10 main sites, and over 100 smaller relays and transposers, which carry either television, radio, or both. In 2002 it became an incorporated company and subsidiary of RTÉ, it was previously a division within RTÉ. Four television channels - RTÉ One, RTÉ Two, TV3 and TG4 - are carried from all main sites; with TV3 being dropped from all bar two relays. Either all three or four stations are on UHF, or RTÉ One and Two are on VHF and TV3 and TG4 on UHF. Four FM radio stations are carried, although not all on every transmitter or auxiliary rely, RTÉ Radio 1, RTÉ 2fm, RTÉ lyric fm and RTÉ Raidió na Gaeltachta. DAB transmitters add the World Radio Network to this. Longwave and Mediumwave radio transmitters carry Radio 1 Europe only.