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Emley Moor (located at ) is an area of -owned Emley Moor transmitting station. Its reinforced concrete tower is the tallest free-standing structure on the British Isles at a height of 330.4 Metre s (1084 Feet ). Reaching the Tower Room (at the top of the concrete part of the tower at 275 m (900 ft)) involves a seven minute journey by lift. The antenna structure above this is a further 56 m (184 ft). This is taller than 1 Canada Square , Britain's tallest ''building'', which is only 235 m (771 ft) high. However, it is not as tall as the Belmont Transmitter in Lincolnshire , which is a guyed mast with a height of 385 m (1265 ft), making it the tallest structure of any kind in the country. On the other hand, the Emley Moor tower is taller than the Eiffel Tower , which is just 300 m (984 ft) high, with an additional 24m (79 ft) antenna on top. Emley's foundations penetrate 6.1 m (20 ft) into the ground and the whole structure, including foundations, weighs 11,200 tonnes. The top of the current tower at Emley Moor is 594 m (1949 ft) above Sea Level due to the site's elevated position on the Eastern edge of the Pennines. This area has always been important for RF (Radio Frequency) transmission and from the foot of Emley`s structure both Holme Moss and the Moorside Edge Transmitter are visible. Both of the latter are within 10 miles radius and are SW and WNW respectively. The current tower is the third structure to have occupied the site. The original 135 m (445 ft) tower was erected in 1956 to provide Independent Television broadcasts to the Yorkshire area. It was replaced in 1964 by a taller 385 m (1265 ft) guyed mast (identical to the structure still standing at Belmont). On 19 March 1969 , a combination of strong winds and the weight of ice that had formed around the top of the mast and on the guys brought the structure down. After a series of temporary masts, erection of the current Concrete -built tower began in 1969 with transmissions commencing on 21 January 1971 . It was designed by '' Ove Arup and Partners''. The Emley Moor tower broadcasts BBC1 , BBC2 , ITV1 Yorkshire , Channel 4 , Five , six Digital Television multiplexes, three Digital Radio multiplexes and two independent local radio stations (''Galaxy 105'' and ''Real Radio'') over an area of approximately 10,000 km². It is the main station for some 51 relays and repeaters throughout Yorkshire and surrounding counties. The UK Government declared Emley Tower a Grade II Listed Building of 'significant architectural or historic interest' in 2002. CHANNELS LISTED BY FREQUENCY
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