The Sudbury transmitting station is a facility for telecommunications and broadcasting transmission at Sudbury, England. It consists of two guyed masts, one, the original, being 165.8 metres (544 ft) high, and a second mast (no longer in service) at 103 metres (338 ft). They have antennas attached at various heights. It is situated 14 miles WSW of Ipswich at a site height of 70m. All 6 Digital TV MUXES are transmitted from Sudbury using an omnidirectional pattern at an ERP of 100 kW. Originally Sudbury was a B group transmitter but in order to accommodate the digital transmissions it went E group then, at its 700MHz clearance in August 2018, it ended up a K group (or wideband). However, most B group, E group and wideband aerials will continue to work fine on it (see graph).
 | |
  Sudbury transmitting station (Suffolk) | |
| Mast height | 165.8 metres (544 ft) (Mast 1) 103 metres (338 ft) (Mast 2) |
|---|---|
| Coordinates | 52°00′15″N 0°47′09″E / 52.004167°N 0.785833°E |
| Grid reference | TL913377 |
| Built | 1967-1968 |
| BBC region | BBC East |
| ITV region | ITV Anglia |
It broadcast television and radio services to central and southern Suffolk and most of Essex, however southern areas of the county received a better TV signal from the Crystal Palace TV transmitter. This includes cities and towns such as Ipswich, Chelmsford, Colchester, Southend, Clacton-on-Sea and Haverhill. Signals can also be received as far as north Kent.
This transmitter has 8 local relays: Burnham-on-Crouch, Clacton, Felixstowe, Ipswich Stoke, Rouncefall, Somersham, Wivenhoe Park, and Woodbridge. [1]
Services available from this site
editDigital radio
edit| Frequency | Block | kW[2] | Operator |
|---|---|---|---|
| 222.064 MHz | 11D | 1 | Digital One |
| 225.648 MHz | 12B | 2.4 | BBC National DAB |
| 229.072 MHz | 12D | 1 | NOW Essex |
Digital televisionedit
|
Before switchoveredit
† Low power transmission from Sudbury B.
|
Analogue television
edit| Frequency | UHF | kW[3] | Service |
|---|---|---|---|
| 583.25 MHz | 35 | 50 | Channel 5 |
| 631.25 MHz | 41 | 250 | Anglia |
| 655.25 MHz | 44 | 250 | BBC2 East |
| 679.25 MHz | 47 | 250 | Channel 4 |
| 711.25 MHz | 51 | 250 | BBC1 East |
- Aerial group: B
- Polarisation: horizontal
See also
editReferences
edit- ^ "Sudbury (including relays)". UK Free TV. 1 May 2004. Retrieved 11 September 2024.
- ^ Radio Listeners Guide 2010
- ^ Television Viewers Guide 2009
External links
edit- Info and pictures of Sudbury transmitter including historical power/frequency changes and present co-receivable transmitters.
- Entry at the Transmission Gallery
- Sudbury Transmitter at thebigtower.com
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