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post #30 of Old 07-26-2011
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Originally Posted by jimmoser View Post
Many of these posts emphasize having paper charts as back up. My question is whether these paper charts are produced by the software used on the laptop, or are they from an independent supplier. In other words, are the charts solely for use if the electronics fails or are there issues with the charts produced by the software or is it both?
In the US charts are updated by the government (NOAA). These first tier charts are used by providers/vendors of both electronic charts and repackaged paper charts such as Maptech. The second tier or second generation charts add another chance for errors to be introduced. If you use government charts you won't be getting any of the potential errors introduced during the conversion to an electronic format.
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