Black Mountain transmitting station
 Black Mountain
 Divis
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| Mast height | 228.6 metres (750 ft) |
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| Coordinates | 54°35′13″N 6°01′20″W / 54.5869°N 6.0222°WCoordinates: 54°35′13″N 6°01′20″W / 54.5869°N 6.0222°W |
| Grid reference | J278727 |
| Built | 1959 |
| Relay of | Divis |
| BBC region | BBC Northern Ireland |
| ITV region | UTV |
The Black Mountain transmitting station is a broadcasting and telecommunications facility, situated on land 301 metres (988 ft) above Ordnance Datum (mean sea level) to the west of the city of Belfast, in Northern Ireland (grid reference J278727). It includes a guyed steel lattice mast which is 228.6 metres (750 ft) [1] in height. The height of the top of the structure above mean sea level is 529 metres (1,736 ft). It is owned and operated by Arqiva.
For high power transmissions of Cool FM, and formerly analogue Channel 5, coverage includes most of central and eastern Ulster, north as far as Ballymena, south as far as Downpatrick and Newry, and west past Dungannon and Cookstown.
Radio stations Q Radio and U105 have a more restricted coverage area, including areas around Greater Belfast, up to Carrickfergus, Antrim, and the shore of Lough Neagh.
The low power digital TV relay is only designed to cover areas of Belfast not already covered by Divis.
Digital television replaced the old analogue signals during October 2012. An additional multiplex named NImux including TG4, RTÉ One, RTÉ Two and RTÉ Raidió na Gaeltachta launched at switchover here and at two other transmitters in Northern Ireland.
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Wikipedia