Dollis HIll GPO Research Station

Dollis Hill in northwest London was the home of the Post Office Research Station from the 1920's to the 1970's. The station was dedicated mainly to research in telecommunications and the teams at Dollis Hill played a leading role in a number of key advances in the field.

In 1914, the Postmaster General agreed that the Post Office needed improved facilities for research and that a permanent Engineering Research Station should be established. Five years later, the Treasury agreed to buy the Dollis Hill site. Initially, staff worked in wooden ex-army huts until the permanent buildings had been completed. The main research building opened in 1923.

The 1930's were years of rapid developments in the telecommunications field and the various research teams at Dollis Hill made many important contributions. In 1936, the Speaking Clock - known to London users as TIM - was designed and constructed there by Dr E.A. Speight. The Dollis Hill teams were also responsible for the development of the Trans-Atlantic telephone cable and for providing the links for outside television broadcasts, such as the first broadcast of the Remembrance Day service in 1937.

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