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Radio Controlled Clocks

  • 01-12-2008 9:35pm
    #1
    LordSutch
    Closed Accounts Posts: 12,078 ✭✭✭✭


    Also known as Atomic Clocks ..........

    Does anyone know the origin for the 'Time Signal' that powers our 'Radio Controlled Clocks'?

    I have three in the house (Dublin) and all three are always 100% accurate, all three change from BST to GMT & back as if by magic, but a friend recently told me that the LW signal that controls my Clocks was beemed directly from France! but I always thought it came from Northern England?

    Maybe there are Atomic Clocks in France & England beaming out the same signal?

    And if I am picking up the 'Atomic' French LW signal how does it know when to put the Clock forward & backward one hour in the Spring & Autumn?


Comments

  • #2
    Hagar
    Closed Accounts Posts: 16,793 ✭✭✭✭Hagar


    There is an old adage “The man with one watch knows what time it is. The man with two is never sure”, is it any better with atomic clocks?


  • #3
    robinph
    Moderators, Science, Health & Environment Moderators, Sports Moderators Posts: 24,144 Mod ✭✭✭✭robinph


    My watch used to pick up a signal from either Rugby or Frankfurt.

    Edit: Seems that it's not Rugby any more and they moved it to Anthorn which I've never heard of before and haven't a clue where it might be.
    wikipedia


  • #4
    LordSutch
    Closed Accounts Posts: 12,078 ✭✭✭✭LordSutch


    Thanks - looked-up 'Anthorn' and its just across the sea in Cumbria.

    No sign of a 'French' transmitter though!


  • #5
    trucksavage
    Registered Users, Registered Users 2 Posts: 3 ✭trucksavage


    wikipedia.org/wiki/Radio_clock' This link is useful


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