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Re: Electronic vs non-electronic


Subject: Re: Electronic vs non-electronic
From: Richard B. Emerson (navsys@XXX.XXX)
Date: Sun Oct 03 1999 - 20:52:14 EDT


Craig writes:
> OK, So which one is the problem? The GPS or the charts? If you are
> actually at a location and the GPS does not match the chart, would celestial
> match the chart or is the chart wrong?
>

The chart is wrong. This problem happens, for example, in the South
Pacific where some survey data is pretty old. BTW, speaking of old
survey data, even highly travelled areas like the Chesapeake use
hydrography from the early to mid-40's!

Rick
S/V One With The Wind, Baba 35





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