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sudbury |
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THE SUDBURY TRANSMITTER is the UHF main station that serves the Suffolk and Essex part of the East Anglia television region. It is sited at Workhouse Green, near the village of Bures, approximately four miles to the south-east of Sudbury town centre. Two other main UHF transmitters at Sandy Heath (Bedfordshire) and Tacolneston (Norfolk) combine with Sudbury to serve the East Anglia region. TRANSMISSION STRUCTURES |
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The Sudbury station is unusual in that it utilises two separate transmission masts. The main structure is a 141.1 metre (463-ft) high triangular cross-section (three-sided) lattice stayed mast. The surmounting fibre-glass (GRP) cylindered UHF aerial extends the overall height to 163 metres (535-ft). The secondary structure is also a triangular cross-section mast which stands at a height of 103 metres and was built in 1997 as part of the provision for Digital Terrestrial Television (DTTV) transmission. |
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Aerials (1)> Aerials (2)> Transmission Site (800x600 or 1024x768 version)> Supersize Images> Landscapes> UHF Map |
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| UHF OVERLAP |
| Reception of Sudbury is also possible across those parts of provincial Essex that are intended to be served by the London region and, more significantly, across the northern coastline of Kent where the principal coverage is provided by the Dover transmitter, which is attached to the south-east region. The Dover transmitter in turn reciprocates the overlap from Sudbury by providing duplicated coverage across some coastal parts of Essex. BBC NATIONAL FM RADIO |
| Sudbury does not carry BBC National or any other BBC FM services as these are generally received across the area from either the nearby Manningtree station in North Essex or Tacolneston. |
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DIGITAL SWITCHOVER |
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The East Anglia region is scheduled for Digital Switchover in 2011 and it has recently been confirmed that Sudbury will along with Tacolneston complete the process on 30 June 2011. Major re-engineering work in connection with the switchover commenced at the station in late 2009/early 2010, the most visible development being the installation of a twelve-tier cylindrical reserve aerial on the main mast. (See Aerials (2) and also the latest wide shots for images). As of May 2010, this remains the most significant change to the mast layout, whilst other major works continue at ground level. (See Transmission Site (800x600 or 1024x768 version) for two new images). |
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| Transmission Site - June 2008 & May 2010 |
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June 2008 |
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May 2010 |
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STATION HISTORY |
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The Sudbury station was built during 1967/8 by the BBC to provide UHF coverage to the Suffolk and Essex part of the East Anglia region. With positioning and ground elevation even more critical than it had been with VHF, the new transmitter site was deemed necessary for UHF despite the existing BBC station at Manningtree, located barely ten miles south-east of the new site and at the time provider of the equivalent BBC 405-line VHF television to much of the same area. The ITA served the region on 405-line VHF from the Mendlesham transmitter in Suffolk but this had also been considered an inappropriate siting for UHF transmission. Sudbury commenced regular service on 10 November 1968, with transmissions initially confined (as they were with all other UHF stations operational before 15 November 1969) to BBC2. Transmitters for BBC1 and ITV were however in service by November 1970. |
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The images below are from May 2010 |
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Aerials (1)> Aerials (2)> Transmission Site (800x600 or 1024x768 version)> Supersize Images> Landscapes> UHF Map |
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STATION INFORMATION |
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Location: |
Workhouse Green, nr Bures, Suffolk, CO8 |
Grid Reference: |
TL913377 |
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Landlord: |
Arqiva (Legacy: BBC/Crown Castle/NGW) |
Ground Height: |
70.1m |
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ITV Region: |
Anglia |
Main Mast Height: |
141.1m |
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BBC Region: |
East |
Second Mast Height: |
103m |
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Aerial Height: (*) |
221m |
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(*) Average UHF aerial height above sea level (a.o.d) |
UHF Tx Number: |
11500 |
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CURRENT TRANSMISSIONS |
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Analogue Television (Until 2011) |
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Analogue Radio (FM) |
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Service |
: Ch/Polarisation/e.r.p |
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Service: |
(MHz) |
(e.r.p) |
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BBC1 |
: 51 / H / 250kW |
None - BBC National from Manningtree and Tacolneston |
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BBC2 |
: 44 / H / 250kW |
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ITV1 |
: 41 / H / 250kW |
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Ch4 |
: 47 / H / 250kW |
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Five |
: 35 / H / 50kW |
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Digital Television (Until 2011) |
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Digital Radio |
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Service |
: Ch/Polarisation/e.r.p |
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Digital One (Block 11D) |
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Mux1 |
: 49 / H / 7.0kW |
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NOW Southend & Chelmsford (Block 12D) |
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Mux2 |
: 68 / H / 8.1kW |
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Mux2 |
: 56 / H / 1.1kW (Sudbury B) |
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MuxA |
: 48 / H / 5.0kW |
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MuxB |
: 39 / H / 7.5kW |
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MuxC |
: 54 / H / 1.5kW |
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MuxD |
: 50 / H / 1.1kW |
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