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    Re: Accuracy of consumer-grade GPS/GLONASS nav.equipment?
    From: John D. Howard
    Date: 2017 Apr 5, 17:15 -0700

     David,

    Thanks for the link.  The last 20 years of my flying was in North America and only the last 6 years did we use GPS.  It was only required at a few, small airports.  We only needed to check on the avaibality of WAAS if we were going to one of them. My world - wide flying was before GPS and even INS so we needed to use cel-nav.

    I did not know about the other systems around the world.  Thanks again.

    John H.

       
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