Sudbury Transmitter
Encyclopedia
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 138m high, and a second mast (around 30m shorter). 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, the first 3 (the PSBs) being transmitting in an Omni-directional pattern at an ERP of 100kW. The other 3 COM MUXES will continue to be on low power (with a restricted radiation pattern) until the 27th June 2012, at which point they will move to a different UHF channel and be increased to the full 100kW power. A Retune will be required on receivers at this point. Originally Sudbury was a B group transmitter but in order to accommodate the Digital transmissions it is now an E group (or wideband).
Broadcasting
Broadcasting is the distribution of audio and video content to a dispersed audience via any audio visual medium. Receiving parties may include the general public or a relatively large subset of thereof...
transmission
Transmission (telecommunications)
Transmission, in telecommunications, is the process of sending, propagating and receiving an analogue or digital information signal over a physical point-to-point or point-to-multipoint transmission medium, either wired, optical fiber or wireless...
at Sudbury
Sudbury, Suffolk
Sudbury is a small, ancient market town in the county of Suffolk, England, on the River Stour, from Colchester and from London.-Early history:...
, England
England
England is a country that is part of the United Kingdom. It shares land borders with Scotland to the north and Wales to the west; the Irish Sea is to the north west, the Celtic Sea to the south west, with the North Sea to the east and the English Channel to the south separating it from continental...
. It consists of two guyed masts, one, the original, being 138m high, and a second mast (around 30m shorter). They have antennas
Antenna (radio)
An antenna is an electrical device which converts electric currents into radio waves, and vice versa. It is usually used with a radio transmitter or radio receiver...
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, the first 3 (the PSBs) being transmitting in an Omni-directional pattern at an ERP of 100kW. The other 3 COM MUXES will continue to be on low power (with a restricted radiation pattern) until the 27th June 2012, at which point they will move to a different UHF channel and be increased to the full 100kW power. A Retune will be required on receivers at this point. Originally Sudbury was a B group transmitter but in order to accommodate the Digital transmissions it is now an E group (or wideband).
Digital radio
| Frequency | Block | kW | Operator |
|---|---|---|---|
| 222.064 MHz | 11D | 1 | Digital One Digital One Digital One is a national commercial digital radio multiplex in the United Kingdom, owned by Arqiva. , the multiplex covers more than 90% of the populationfrom a total of 137 transmitters... |
Digital television
| Frequency | UHF | kW | Operator |
|---|---|---|---|
| 634.0 MHz | 41 | 100 | Digital 3&4 Digital 3&4 Digital 3&4 is a consortium consisting of regional Channel 3 companies and Channel 4 Television Corporation, which operates a multiplex broadcasting from a number of transmitter sites in the UK, carrying television and radio channels from both ITV and Channel 4; however three per-cent of the... |
| 658.0 MHz | 44 | 100 | BBC A |
| 682.0 MHz | 47 | 100 | BBC B |
| 698.0 MHz | 49 | 14 | SDN S4C Digital Networks SDN is a company that operates Multiplex A, one of the six groups of channels on digital terrestrial television in the United Kingdom... |
| 738.0 MHz | 54 | 1.5 | Arqiva A |
| 810.0 MHz | 63 | 1.1 | Arqiva Arqiva Arqiva is a telecommunications company which provides infrastructure and broadcast transmission facilities in the United Kingdom and Republic of Ireland. The present company, with headquarters located at Crawley Court in the village of Crawley, Hampshire, was formed by National Grid Wireless... B |
- UHF Channels will change on 27th June 2012
- Aerial group E is required to receive all channels.