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((Short description|British Telecommunications towers))
((refimprove|date=April 2014))
((GeoGroupTemplate))

'''Telecommunications towers in the United Kingdom''' are operated mainly by [[Arqiva]].<ref>((cite web|url=http://www.dtg.org.uk/news/news.php?id=2945 |title=News :: Competition Commission approves Arqiva and NGW merger |publisher=DTG |date= |accessdate=2014-04-20))</ref> Arqiva operates the transmitters for UK terrestrial [[Television|TV]] and most [[radio]] broadcasting, both [[Analog television|analogue]] and [[Digital data|digital]]. [[BT Group|BT]] also operates a number of [[telecommunications]] towers in the UK.
[[File:BT Telecoms Tower, Stoke Park, Bristol, England arp.jpg|thumb|[[Purdown BT Tower]], [[Bristol]]]]

==BT==
((Main|British Telecom microwave network))
BT's towers were, at one time, the backbone for a national line-of-sight [[microwave]] telecommunications network. One of the most famous of these is the [[BT Tower (London)|BT Tower]] in London. However, the introduction of [[fibre optic]] network technology rendered these microwave towers largely obsolete for their original purpose. Nowadays they tend to be used mainly for relatively low capacity fixed links to customer sites and [[mobile telephony]].

===List of BT towers===
[[BT Group]] owns at least 200 [[radio masts and towers]] in [[United Kingdom|Britain]].<ref>Crampsey, D. and Fase, M.L. ''External Engineering'', British Telecommunications Engineering, Vol. 10 Part 1 (April 1991), p.13</ref> Of these, fourteen are [[reinforced concrete]] towers. The rest are of steel lattice construction.

Seven of the fourteen are of similar design, known as the 'Chilterns' type, after the first one which was built at [[Stokenchurch]] on the [[Chiltern Hills]].
They are identical except for their heights, which vary considerably. They are at:

{| class="wikitable sortable"
!Tower
!Location
!Coordinates
!Height 
!Year of built
|-
| [[Stokenchurch BT Tower]]
| Stokenchurch, Buckinghamshire
| ((coord|51.665388|N|0.923827|W|type:landmark|name=Stokenchurch BT Tower))
| 120 m ( 394 ft)
|
|-
| [[Charwelton BT Tower]]
| Charwelton, Northamptonshire
| ((coord|52.202327|N|1.251020|W|type:landmark|name=Charwelton BT Tower))
| 118 m ( 387 ft)
|
|-
| [[Pye Green BT Tower]]
| Pye Green, Staffordshire
| ((coord|52.728687|N|2.019589|W|type:landmark|name=Pye Green BT Tower))
| 96.9 m ( 318 ft)
|
|-
| [[Wotton-under-Edge BT Tower]]
| Wotton-under-Edge, Gloucestershire
| ((coord|51.649319|N|2.304024|W|type:landmark|name=Wotton-under-Edge BT Tower))
| 76.2 m ( 250 ft)
|
|-
| [[Heaton Park BT Tower]]
| Manchester
| ((coord|53.539611|N|2.255223|W|type:landmark|name=Heaton Park BT Tower))
| 72.54 m ( 238 ft)
|
|-
| [[Sutton Common BT Tower]]
| Macclesfield, Cheshire
| ((coord|53.206135|N|2.100711|W|type:landmark|name=Sutton Common BT Tower))
| 72 m ( 238 ft)
|
|-
| [[Tinshill BT Tower]]
| Cookridge area, Leeds, West Yorkshire
| ((coord|53.854752|N|1.612009|W|type:landmark|name=Tinshill BT Tower))
| 60.96 m ( 200 ft)
|
|}
The other seven are:

{| class="wikitable sortable"
!Tower
!Location
!Coordinates
!Height 
!Year of built
|-
| [[Emley Moor|Emley Moor Tower]]
| Huddersfield, West Yorkshire
| ((coord|53.612056|N|1.664414|W|type:landmark|name=Emley Moor Tower))
| 330.5 m ( 1084 ft)
| 1970
|-
| [[BT Tower|London BT Tower]]
| London
| ((coord|51.5215|N|0.1389|W|type:landmark|name=London BT Tower))
| 188.4 m ( 618 ft)
| 1964
|-
| [[BT Tower (Birmingham)|Birmingham BT Tower]]
| Birmingham
| ((coord|52.483522|N|1.904278|W|type:landmark|name=Birmingham BT Tower))
| 152 m ( 499 ft)
| 1965
|-
| [[Peterborough transmitting station|Morborne Hill BT Tower]]
| Peterborough, Cambridgeshire
| ((coord|52.507618|N|0.344617|W|type:landmark|name=Peterborough-Morborne Hill BT Tower))
| 98.75 m ( 324 ft)
| 
|-
| [[Purdown BT Tower]]
| Bristol
| ((coord|51.485244|N|2.562717|W|type:landmark|name=Purdown BT Tower))
| 70.1 m ( 230 ft)
| 1970
|-
| [[Tolsford Hill BT Tower]]
| Folkestone, Kent
| ((coord|51.107467|N|1.084789|E|type:landmark|name=Tolsford Hill BT Tower))
| 67.36 m ( 221 ft)
| 
|-
| [[Turners Hill Transmitter|Turners Hill BT Tower]]
| Dudley, West Midlands
| ((coord|52.496438|N|2.049005|W|type:landmark|name=Turners Hill BT Tower))
| 60.96 m ( 200 ft)
|
|}

==Mobile phone==
Below the level of the major telecommunications towers, mobile phone operators run roughly 23,000 [[base station]]s. In urban areas, these are almost all rooftop sites or [[microcell]]s, but in rural areas these are often on towers, frequently owned by BT or Arqiva. The '''Sitefinder database''' is an incomplete list of mobile phone base stations in the UK.<ref>((cite web |url=http://stakeholders.ofcom.org.uk/sitefinder/faq |title=Ofcom &#124; Frequently Asked Questions |publisher=Stakeholders.ofcom.org.uk |date=2010-06-21 |accessdate=2014-04-20 |url-status=dead |archiveurl=https://web.archive.org/web/20140321182908/http://stakeholders.ofcom.org.uk/sitefinder/faq |archivedate=2014-03-21 ))</ref>

Since the discontinuation of the Ofcom sitefinder website in 2015, Estate Systems Ltd have developed a comprehensive site [https://www.mastdata.com/ www.mastdata.com]<ref>From Ofcom: The Sitefinder website has now been discontinued.  We no longer receive data updates from mobile operators on their mast locations. As a result, the Sitefinder data was several years old and could be very misleading.</ref> for use by the public and mobile operators (subject to a fee) which locates masts within the UK including Northern Ireland.

Arqiva sold its mast business for telecoms to Cellnex. They no longer operate in this area.

==Military==
There are also numerous [[military]] communications sites in the UK, operated by various wings of the armed forces. Many of the masts and towers at military sites are now marketed to commercial site sharers by Arqiva.

==History==
The first UK microwave relay towers were built in about 1952 for a television link between Manchester and [[Kirk o'Shotts transmitting station|Kirk o'Shotts]] near Glasgow. A chain of 14 towers, known as "Backbone", running from the Chilterns to Scotland and intended primarily for national defence in the [[Cold War]], was first mentioned publicly in the 1955 Defence White Paper. It announced "The Post Office are planning to build up a special network, both by cable and radio, designed to maintain long distance communication in the event of an attack". It wasn't actually built until the early 1960s, by which time the original Backbone concept had become absorbed into a much larger microwave network built for a mixture of civil and defence traffic including voice, telegraphy, television and radar.<ref>((Cite web|title = RSG: Features: The Towers of Backbone.|url = http://www.subbrit.org.uk/rsg/features/backbone/|website = www.subbrit.org.uk|accessdate = 2015-11-19))</ref>

==See also==
* [[BT site engineering code]]
* [[Radio masts and towers]]
* [[Telecommunications in the United Kingdom]]
* [[Telecom infrastructure sharing]]

==References==

<references />

==External links==
* [https://web.archive.org/web/20051201064325/http://www.nationalgrid.com/uk/wireless/ National Grid Wireless]
* [http://www.arqiva.com/ Arqiva]
* [http://www.mastdata.com/ Mastdata (Estate systems Ltd)]
* [https://web.archive.org/web/20031005014046/http://www.ntl.com/locales/gb/en/broadcast/wireless-solutions/index.asp NTL Wireless Solutions]
* [https://web.archive.org/web/20091207163802/http://www.sitefinder.ofcom.org.uk/ Sitefinder: UK mobile phone base station database]
* [http://www.subbrit.org.uk/rsg/features/backbone/ The Towers of Backbone]
* [https://skyscraperpage.com/diagrams/?buildingID=5736,6765,2262,8771,105210,105207,105218,105212,109489,109486,109490,109484,109488,109487,109485 Collaction] at [http://skyscraperpage.com Skyscraperpage.com]

[[Category:Communication towers in the United Kingdom]]
[[Category:Transmitter sites in the United Kingdom| ]]

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