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London Transport (uk.transport.london) Discussion of all forms of transport in London. |
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On Tue, 07 Feb 2012 20:44:11 +0000, Stephen Furley
wrote: On 7/2/12 12:20, in article , "Roland Perry" wrote: at 13:10:49 on Sun, 5 Feb 2012, 222103 remarked: How are clocks synchronised on the real railway? The original digital ones were synched to "Rugby" (now located at Anthorn in Cumbria). Analogue ones are increasing synchronised to the "correct twice a day" source, popularly known as "stopped". The second picture on this page: http://www.subbrit.org.uk/sb-sites/s...o/index2.shtml Shows a tuning coil at Rugby, which I think was the one for the time signal. Low frequencies tend to require large coils, but I've never seen anything like this. Cop this one then :- http://www.nonstopsystems.com/radio/...-mil-tx-rx.htm (tuning coil about 3/4 down the page) now recycled by the Russian navy. |
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