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405-line transmitters of the United Kingdom

释义

The 405-line transmitter network of the United Kingdom
Transmitters by Region
England Channel Islands East London and South East Midlands North Northeast Northwest South Southwest West Northern Ireland Scotland Wales
External links

The 405-line transmitter network of the United Kingdom

Alexandra Palace in London hosted the first 405-line transmitter, active between 1936 and 1939, then again from 1946 through to 1956. From 1949 onwards the Band I VHF 405-line BBC transmitter network grew quickly.

Channel	Vision Carrier Frequency
B1	ch=1}}
B2	ch=2}}
B3	ch=3}}
B4	ch=4}}
B5	ch=5}}

In 1955 with the advent of ITV a parallel effort to provide a Band III network was also underway. The pre-1955 BBC stations used the five channels of Band I, but with the introduction of Band III some BBC stations started appearing there too (most of them on channels 12 or 13). All ITV transmitters were in Band III.

Channel	Vision Carrier Frequency
B6	ch=6}}
B7	ch=7}}
B8	ch=8}}
B9	ch=9}}
B10	ch=10}}
B11	ch=11}}
B12	ch=12}}
B13	ch=13}}

There were eventually 41 high power "main stations" owned by either the BBC or the IBA (see below). Most were built during the 1950s. The BBC's last main station to enter service was Belmont in Lincolnshire in November 1966, the IBA's last main station was the Welsh service from St. Hilary which went on-air in February 1965.

The main stations were supported by a large number of off-air relay stations to fill awkward gaps in the service from the main stations. The last of these (Llanelli in south Wales (BBC) and Newhaven in southeast England (IBA) had been built by late 1970.

The entire system was decommissioned between 1982 and January 1985.

Transmitters by Region

England

Channel Islands

East

{{Mendlesham VHF 405-line Transmitter Group}}{{Peterborough VHF 405-line Transmitter Group}}{{Tacolneston VHF 405-line Transmitter Group}}

London and South East

{{Alexandra Palace VHF 405-line Transmitter Group}}{{Croydon VHF 405-line Transmitter Group}}{{Crystal Palace VHF 405-line Transmitter Group}}{{Oxford VHF 405-line Transmitter Group}}{{Swingate VHF 405-line Transmitter Group}}

Midlands

North

Northeast

{{Burnhope VHF 405-line Transmitter Group}}{{Emley Moor VHF 405-line Transmitter Group}}{{Pontop Pike VHF 405-line Transmitter Group}}

Northwest

{{Sandale VHF 405-line Transmitter Group}}{{Caldbeck VHF 405-line Transmitter Group}}{{Winter Hill VHF 405-line Transmitter Group}}

South

{{Chillerton Down VHF 405-line Transmitter Group}}{{Dover VHF 405-line Transmitter Group}}{{Rowridge VHF 405-line Transmitter Group}}

Southwest

{{Caradon Hill VHF 405-line Transmitter Group}}{{North Hessary Tor VHF 405-line Transmitter Group}}{{Redruth VHF 405-line Transmitter Group}}{{Stockland Hill VHF 405-line Transmitter Group}}

West

Northern Ireland

Scotland

{{Black Hill VHF 405-line Transmitter Group}}{{Durris VHF 405-line Transmitter Group}}{{Kirk o'Shotts VHF 405-line Transmitter Group}}{{Meldrum VHF 405-line Transmitter Group}}{{Mounteagle VHF 405-line Transmitter Group}}{{Rosemarkie VHF 405-line Transmitter Group}}{{Sandale VHF 405-line Transmitter Group}}

Wales

{{Blaenplwyf VHF 405-line Transmitter Group}}{{Haverfordwest VHF 405-line Transmitter Group}}{{Llanddona VHF 405-line Transmitter Group}}{{Moel-y-Parc VHF 405-line Transmitter Group}}{{Preseli VHF 405-line Transmitter Group}}{{St Hilary VHF 405-line Transmitter Group}}{{Wenvoe VHF 405-line Transmitter Group}}

External links

MB21's page on BBC 405 TV
MB21's page on ITV 405 TV
405 Alive's list of transmitters"
[https://web.archive.org/web/20120308050124/http://www.pembers.freeserve.co.uk/405-Lines/tx-list.html#BBC More details on 405-line BBC transmitters]

1 : Transmitter sites in the United Kingdom

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