Two On A Big Ocean The Story of the First Circumnavigation
of the Pacific Basin
in a Small Sailing Ship


      

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Re: lv-ab: Re: Navigation Software & technique

From: Lee Haefele (no email)
Date: Fri Nov 05 2004 - 07:47:31 EST

  • Next message: Lee Haefele: "Re: lv-ab: Bahamas Fees?"

    Using my Garmin 182C that always has the "GPS accuracy" displayed, I find
    that while the accuracy is ~20', that 2 recorded tracks into a narrow harbor
    entrance may be 200' different. Then there are the charts: these are made
    before the current generation of GPS accuracy. Always use multiple sources
    of info.
    Lee Haefele

    Subject: Re: lv-ab: Re: Navigation Software & technique

    >
    > Yes, using a GPS with road map software while driving
    > really shows up the limitations. Sometimes it thinks
    > I'm driving along happily beside the road rather than
    > on it. Of course the maps themselves may not be
    > correct either, and then the errors can be compounded.
    > But most of the time it is right on.
    >
    > Dick
    >
    >
    >
    >

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