It includes a 305.5 metres (1,002 ft) high guyed steel lattice mast, which is the tallest structure in Ireland.

It was originally commissioned by the Independent Television Authority to bring ITV signals (provided by Ulster Television) to the west of Northern Ireland, including the districts of Derry and Enniskillen on 405-line VHF, using Channel 8 (Band III).

When UHF television came to Northern Ireland, main transmitters were commissioned at Limavady and Brougher Mountain, near Omagh.

Due to the elevation of the antennas (584 m above sea level), a 2kW effective radiated power was sufficient to cover a very wide area, with coverage available well into County Donegal.

In 2001, the site was installed with a transmitter for Score Northern Ireland, a regional digital radio multiplex.