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    Re: GPS and uncloaking
    From: Charles Tait
    Date: 2003 Feb 9, 17:07 +0000

    Hi there
    I have been silently following the delurkers.  Surely the real thing
    with all technology is to properly understand the interface and how the
    data is presented as well as how it works in a basic way.  This applies
    whether one is trying to use an astrolabe, modern sextant, GPS, or
    whatever.  It is quite easy to get lost with a properly working, but
    badly programmed or interpreted GPS.  And of course the British Navy
    quite often made serious navigational errors before they knew about how
    to get their longitude accurately.
    We have done lots of yacht trips around the north and west of Scotland,
    always using the electronics as back up to our "real" navigation.
    However when the pea soup fog rolls in here in Orkney I can assure you
    all that there is nothing to beat radar!  Also I would echo the comments
    on astro navigation.  Around Scottish waters I think generally it would
    be hard to navigate safely with a sextant, because the reliability of
    getting a fix can be 0% so often.  We have found that the number of
    occasions to actually get a useful position this way has been close to
    zero, but the fun in doing it still justifies trying.
    On a completely different tack we are looking at the next major lunar
    standstill in 2006 and will be attempting to observe putative alignments
    at various UK stone circles and other ancient places.  These include
    Brodgar in orkney, Callanish on Lewis, as well as other places.
    Charles Tait Photographic Limited, Kelton, St Ola, Orkney, UK  KW15 1TR
    Tel 01856 873738  Fax  01856 875313  Mobile 07785 220269
    All outgoing and incoming mail is checked by Norton Antivirus 2003
    email  charles.tait@zetnet.co.uk
    website http://www.charles-tait.co.uk

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