It was constructed in 1962 by the IBA to transmit ITV 405-line television with transmissions commencing on Band III channel 8 from antennas at 559 m (1,835 ft) above sea level.

The Welsh region ITV programming was initially provided by Teledu Cymru which was taken over by TWW in 1964, and eventually HTV Wales who took over from 1968.

In 1971, three protesters from Cymdeithas yr Iaith Gymraeg were jailed for "conspiring to trespass" after gaining access to the site compound and climbing the lower section of the mast.

The site was uprated in 1973[1] to transmit UHF 625-line PAL analogue television channels, starting with BBC1, BBC2 and HTV Wales, with S4C being added in late 1982.

From 1962 onward, many households in these counties would point their outdoor aerials towards the Irish sea and could receive transmission from this transmitter.

The QAM constellations and number of carriers were changed around 2002 after the collapse of ITV Digital as the service was taken over by the Freeview consortium.

In addition to the power increase to 20 kW ERP, it was reconfigured to 64QAM and 8k carriers, which resulted in a service area similar to the old analogue transmissions but with much more bandwidth available than Multiplex 1 ever had.