1950 RELATED STORIES

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THE 1950s EQUIPMENT

Copy required based on Hancock book

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ESSEN RING CRYSTAL OSCILLATORS

Copy required based on Hancock book

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COLD CATHODE CLOCKS

Soon after the construction of the new Long Wave High Power Transmitter was announced, the introduction of Time Signals as part of this service began being discussed...

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ATOMIC FREQUENCY STANDARDS

The National Physical Laboratory took over control of the MSF Time Signal service in 1967 and introduced new Rubidium Atomic Frequency Standards and solid-state digital clocks...

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WHEN THE CLOCKS CHANGED TO ATOMIC TIME

On 1st January 1972, the definition of the second changed from being based on the rotation of the Earth to being based on the Caesium Atomic Frequency Standard.

The switch from astronomic time to atomic time (which had to take place exactly at midnight) was a nerve-racking occasion for all involved...

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PIGEON STOPS TIME

In 1987 the station’s Long Wave (VLF and LF) Aerial Systems were re-designed to increase the bandwidth of the GBR aerial. A number of changes were required to facilitate the operation, some of which proved to be very attractive with local pigeons, particularly the bell-shaped ceramic insulator and the large horizontal copper pipe in the centre of it...

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