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 high, and a second mast (no longer in service) at . 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). Services available from this site Digital radio Digital television Aerial group K is required to receive all channels. Before switchover † Low power transmission from Sudbury B. Analogue television Aerial group: B Polarisation: horizontal See also List of masts References External links 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 Transmitter sites in England