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    Re: Two Wave-Ceptor watches differ by 5 seconds-my watch!
    From: Bob Goethe
    Date: 2015 Sep 8, 20:48 -0700

    I had an odd experience last summer.  I was on a boat for 19 days, doing celestial for many of them.  I had rated my Casio Wave-Ceptor watch before leaving home, and so knew what its typical rate of gain/loss was when out of range of the NIST transmissions.

    Both I and the boat's captain (who also was doing some sextant work) felt like we noticed two occasions when the GPS clock jumped ahead by a couple of seconds on a given day, and then fell back to what we expected the following day.

    I was not listening to WWV on the shortwave, so I never got a golden-standard for my time observations.  All I had was a vague sense that the time on the GPS receiver was maybe not reliable.  Has anybody else noted something like this...or did I simply make a couple of spurious observations?

    Bob

       
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