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    Re: leap seconds a navigational hazard, says expert
    From: Brooke Clarke
    Date: 2003 Aug 8, 18:32 -0700

    Hi Jared:
    The GPS system does not use leap second as this would cause an ambiguity
    so GPS will drift apart from UTC as time goes on and the Earth slows
    down.  The GPS system does broadcast the difference between GPS time and
    UTC so a GPS receiver can display UTC.  I think it is the default in
    most modern GPS receivers to display UTC or some time zone derived from
    UTC so you probably will not see a GPS receiver displaying GPS time,
    unless you go into some menu can change the display.
    I wonder if those who propose doing away with UTC have some agenda to
    make money from that change.
    Have Fun,
    Brooke Clarke, N6GCE
    Jared Sherman wrote:
    >So, if I understand this, an almanac is based on Universal Co-ordinated Time 
    and if one tried to use a GPS as the time base when doing celestial, one 
    would be off by 13 seconds?
    >I'd have to check but don't recall my watch (chronometer rated) being that 
    far off from my GPS, when I use the USNO as the time standard to hack the 
    >SHould it be?

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