All these UHF transmitters will carry the combined colour/black-and-white transmissions from the time they are taken into service. The 405-line black-and-white-only version of the same programmes will continue to be radiated simultaneously from the existing network of ITA VHF (Band III) stations.
The main transmitters in the first phase (with ITA Channel Number, aerial polarization and group) are:
1969: Crystal Palace, London (23 H/A); Sutton Coldfield, nr. Birmingham (43 H/B); Winter Hill, Lancashire (59 H/C); Emley Moor, Yorkshire (47 H/B); Black Hill, nr. Glasgow (43 H/B); Rowridge, Isle of Wight (27 H/A); Dover, Kent (66 H/D).
1970: Waltham, nr. Melton Mowbray (61 H/C); Wenvoe, nr. Cardiff (41 H/B); Mendip, Somerset (61 H/C); Beckley, nr. Oxford (60 H/C); Pontop Pike, Durham (61 H/C); Divis, nr. Belfast (24 H/A); Tacolneston, Norfolk (59 H/C).
1971: Sudbury, Suffolk (41 H/B); Belmont, Lincolnshire (25 H/A); Bilsdale, Yorkshire (29 H/A); Sandy Heath, Bedfordshire (24 H/A); Caradon Hill, East Cornwall (25 H/A); Redruth, West Cornwall (41 H/B); Durris, Kincardineshire (25 H/A); Craigkelly, Fife (24 H/A); Caldbeck, Cumberland (28 H/A).
1971-72: Heathfield, East Sussex (64 H/D); Selkirk, Selkirkshire (59 H/C).
Low power relay stations planned for 1970: Guildford, Reigate, Tunbridge Wells, Hemel Hempstead, Brierley Hill, Bromsgrove, Stoke-on-Trent, Nelson/Colne (Pendle Forest), Wharfedale, Sheffield, Chesterfield, Kilvey Hill.
Low power relay stations planned for 1971 or early 1972: Hertford, High Wycombe, Kidderminster, Malvern, Lark Stoke, Darwen, Haslingden, Skipton, Todmorden, Saddleworth, Lancaster, Halifax, Keighley, Rhondda, Caerphilly, Pontypridd, Fenham, Salisbury, Brighton, Bath, Newhaven, Hastings.
The aerial groups A-E refer to the recommended UHF aerial group needed to cover the allocated UHF channels in the district.