Strabane transmitting station

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Strabane
Gallan Road, Cavanlee - geograph.org.uk - 192895.jpg
United Kingdom Northern Ireland adm location map.svg
Red pog.svg
Strabane
Green pog.svg
Limavady
Mast height305.5 metres (1,002 ft)
Coordinates 54°47′58″N7°23′19″W / 54.7994°N 7.3886°W / 54.7994; -7.3886 Coordinates: 54°47′58″N7°23′19″W / 54.7994°N 7.3886°W / 54.7994; -7.3886
Grid reference H393947
Built1963
Relay of Limavady
BBC region BBC Northern Ireland
ITV region UTV

The Strabane transmitting station is a broadcasting and telecommunications facility located at Legfordrum and situated very close to the town of Strabane, in County Tyrone, Northern Ireland (Grid Reference: H393947, GNR: IH393947). It is owned and operated by Arqiva.

Contents

It includes a 305.5 metres (1,002 ft) high guyed steel lattice mast, which is the tallest structure in Ireland. The transmission antennas surmounting the structure are contained within a fibreglass cylinder. Constructed in 1963, it came into service on 18 February of that year.

History

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). The transmitter commenced full service on Monday 18 February 1963. [1] 405 line television was discontinued in the UK in 1985.

When UHF television came to Northern Ireland, main transmitters were commissioned at Limavady and Brougher Mountain, near Omagh. However this left a gap in the Strabane and Newtownstewart areas, so in July 1977 UHF television was added to the Strabane site. 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.

Digital switchover took place in Northern Ireland in October 2012, when analogue TV transmissions from this station were replaced by digital transmissions. The coverage area is approximately the same as the analogue services, and there are three digital multiplexes transmitted.

Services listed by frequency

Digital radio (DAB)

FrequencyBlockkWOperator
229.072 MHz12D5 Bauer Northern Ireland [2]

Digital television Until 04/09/2019

FrequencyUHFkWOperatorSystem
618.166  MHz 39+0.4 BBC B DVB-T2
642.000  MHz 420.4 Digital 3&4 DVB-T
666.000  MHz 450.4 BBC A DVB-T

Digital television After 04/09/2019

FrequencyUHFkWOperatorSystem
562.000  MHz 320.4 BBC A DVB-T
578.000  MHz 340.4 Digital 3&4 DVB-T
586.166  MHz 35+0.4 BBC B DVB-T2
626.000  MHz 400.4NIMM DVB-T2

Analogue television

FrequencyUHFkWService
615.25 MHz392 BBC One Northern Ireland
639.25 MHz422 Channel 4
663.25 MHz452 BBC Two Northern Ireland
695.25 MHz492 UTV

See also

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References

  1. "TheBigTower Strabane Transmitter". Archived from the original on 7 April 2016. Retrieved 26 September 2021.
  2. Radio Listeners Guide 2010 Edition