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    Re: Chronometers after radio time signals
    From: Chuck Taylor
    Date: 2007 Oct 23, 09:15 -0700

    If you relied on radio signals, you would need
    multiple radios for redundancy.  Before the mid-20th
    century, radios were based on vacuum tubes, and were
    less reliable than radios today.  And then there is
    the problem of reliable reception.  How many stations
    were transmitting time signals in 1950, and where were
    they located?  Would you be willing to bet your life
    on reliable radio reception everywhere on the world's
    oceans at all times?  Keeping multiple mechanical
    chronometers would seem to be a prudent course of
    action in 1950.
    
    Chuck Taylor
     48 N
    122 W
    
    --- Alexandre E Eremenko wrote:
    
    > In fact I was always puzzled how chronometers
    > survived to the second half of XX century.
    > They should have been all trashed when daily radio
    > checks became available:-)
    > To maintain time between two daily broadcasts
    > all you need is a moderately priced wristwatch
    > or a pocket watch.
    >
    > Alex.
    >
    
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