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    Re: Over-reliance on GPS
    From: Richard B. Langley
    Date: 2008 Nov 13, 08:57 -0400

    Some discussion of eLORAN here:
    Also, see:
    -- Richard Langley
    Quoting Anabasis75@aol.com:
    > Lu writes:
    > "Carl, let's be careful here.   LORAN was primarily deployed in  North
    > America (I believe there was also some coverage in the Pacific due to US
    > territories there and Japan also operated a chain).   Loran is being  brought back in
    > the US.  I don't know about Canada and I'm pretty sure it's  not being
    > resurrected in the Pacific.   So while it's great (I did a  lot of precision
    > electronic
    > navigation using Loran way before GPS) Loran  certainly doesn't provide the
    > worldwide coverage provided by  GPS."
    > LORAN isn't being "brought back" so much as enhanced as Carl  mentioned.
    > eLORAN will have an additional signal encoded in it to enhance  accuracy among
    > other improvements.  There is a good article on the USCG  website about it that
    > I would link to except that I have only sporadic email  here at sea and no
    > Internet connection.
    > The Japan/Guam chain is still going strong, and of course the chains on the
    > US coasts are there as well.  Lu is correct that it gets sketchy outside of
    > groundwave coverage, and is certainly just a mid-ranged system that should
    > compliment GPS nicely out to several hundred miles from the stations.
    > What will be interesting to see is the EU version of GPS (I forget the  name)
    > which should then offer us two independent systems of deep sea electronic
    > navigation which will give us a third navigation system in the deep  oceans.  I
    > look forward to that.
    > Jeremy
    > **************Get the Moviefone Toolbar. Showtimes, theaters, movie news &
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    > >
     Richard B. Langley                            E-mail: lang@unb.ca
     Geodetic Research Laboratory                  Web: http://www.unb.ca/GGE/
     Dept. of Geodesy and Geomatics Engineering    Phone:    +1 506 453-5142
     University of New Brunswick                   Fax:      +1 506 453-4943
     Fredericton, N.B., Canada  E3B 5A3
         Fredericton?  Where's that?  See: http://www.city.fredericton.nb.ca/
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