Bunaíodh RTÉ Raidió na Gaeltachta le seirbhís iomlán raidió a chur ar fáil do phobal na Gaeltachta agus do lucht labhartha na Gaeilge ar fud na tíre. Tháinig an stáisiún ar an aer don chéad uair ag 3 pm, Domhnach Cásca, 2 Aibreán 1972.

Raidió na Gaeltachta began broadcasting from its main studio at Casla in Conamara on Easter Sunday, 2 April 1972.

RTÉ News item about the opening of the station. Breandán Ó hEithir's report includes footage of Pádraic Ó Raghallaigh, a blessing at the station's first studio in Casla, and Raidío na Gaeltachta's first outside broadcast, a mass celebrated at St MacDara's Church in An Cheathrú Rua.