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Current to Wed Jul 23 17:29:51 GMT 2003
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  • - Truman Prevatt
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  • - Sullivan

    Re: [RC] GPS - Truman Prevatt


    There have been several rides in the east that used GPS to measure distance. When all was said and done when they were actually measured with an odometer, they were about ten to twenty percent long. If you can't see the birds they don't work. If you don't have visibility down to 20 degrees in all directions you don't see sufficient satellites for reliable operations.

    I was developed for military operations - for location and time transfer - not for horsemen riding in the mountains.

    Truman

    amber applegate wrote:
    I have to differ with that statement, Truman. I ride in nothing but
    mountains, forest, valleys and my garmin gps works great. Why would they
    make them if they couldn't be used in all types of terrain? I carry it
    zipped up in my saddlepack even, it has always recorded everything. Only
    problem I have with it is the batteries use up way too fast. I can only get
    about 7 hours on a set of batteries, even using the battery saving mode.

    So I missed the beginning of this thread, is it not allowed to be used in
    AERC? and if so, why?
    amber




    Unless you are riding in pretty flat, open terrain - no follage cover,
    no valleys, no hills, etc.- the GPS won't do much of a job with what you
    want since your satellite coverage will be limited. On a ride last year
    I turned my on doing a 24 mile loop just for grins. This loop was pretty
    open - no trees - but there was enough blockage from hills and valleys
    that the 24 miles ended up showing up as 11 on the unit.

    Great tool for what it was designed to do but it does take some
    judgement in reading the results.

    Truman




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    Replies
    [RC] GPS, April Johnson
    Re: [RC] GPS, Truman Prevatt
    Re: [RC] GPS, amber applegate