Crystal_Palace_Transmitter Crystal_Palace_Transmitter

Crystal Palace Transmitter - Definition
Related Words: Teletype, Beacon, Code, Electricity, Extension, Key, Microphone, Mouthpiece, Phone

The Crystal Palace Transmitter is a telecommunications transmission mast in Bromley, London and (as of 2004) is the second tallest structure in London. Constructed in 1950 at 222m (728ft) tall, it was the tallest structure in London until 1991. Despite its size, it has been largely overlooked as London landmark due to its location and simplicity. It has been nicknamed London's Eiffel Tower.

The mast is currently used for UHF television broadcasting. It carries the London regions of BBC ONE, BBC TWO, ITV1 and Channel 4 in analogue, each with a power of 1MW, as well as all of the Freeview and Top Up TV digital terrestrial television multiplexes (note that digital channels require far less power to achieve the same coverage). The mast has a range of about 30 miles (50 km).

The tower is also used for mediumwave transmission on 558 kHz and 1035 kHz. Since the tower is grounded a wire aerial spun close to it is used.

Note: five uses the nearby Croydon Transmitter for its London analogue transmission.

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