RE: Regarding Time Signals

From: Derek C Breit (
Date: Mon Feb 23 2009 - 23:09:44 UTC

  • Next message: Walter Ridgewell: "RE: Regarding Time Signals"

    Hi all:  This past Sunday I noticed I was getting 4 time signal  stations on
    my radio:  15, 10, 5, 3.33 MHz.  When I timed the time  signals I found
    a 1 sec spread, unusually large I thought.  Anyway, no  2 signals were
    the same.  Does this have some affect on the non-GPS  timing for observers 
    that rely on radio time signals?  In the evening, I  usually can only hear
    station at 3.333 MHz.
    Yes.. Has to do with the distance the signal has to travel from the
    broadcast station to you..
    Here is a link to a great circle calculator..
    A correction to the time has to be made to account for this. It is a small
    change, but for accuracy...
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