Why I do not trust chartplotters. - Page 2 - SailNet Community

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Go Back   SailNet Community > Skills and Seamanship > Seamanship & Navigation
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Seamanship & Navigation Forum devoted to seamanship and navigation topics, including paper and electronic charting tools.


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Old 05-25-2010
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PalmettoSailor will become famous soon enough
Quote:
Originally Posted by PBzeer View Post
My PC based chart program displays either type of chart, so if I have any question about what my eyes are seeing and what my program is showing, I can double check within the program (or bring up SeaClear) or check my paper charts. So far, from Clear Lake, TX to Annapolis,MD (via the Keys, the Gulf and the GIWW) I haven't experienced that kind of problem. Trust, but verify.

So far, my only problem has been an area of the Potomac River that went blank due to a program glitch, which I was able to advise Fugawi of at the Annapolis Boat Show.
It might not of been a glitch. Pax River Naval Station is not too far from there and they are regularly experimenting with GPS signal jamming. There are Notices to Airmen about such activity fairly regularly. I'm sure they try to control and minimize the impact but you have to wonder what unintended consequenses there could be.
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Last edited by PalmettoSailor; 05-25-2010 at 12:39 PM.
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