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post #3 of Old 04-16-2004
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GPS and electronic charts question?

Hey James,

I used to ask myself these same questions until I started smoking through the ears from frustration.
Finally found a FREE full-featured nav program call SOB (
Uses c-map charts, either on CD or the NT+ cartridges from a plotter. You''d probably only need one or two c-map cartridges for all your area (they''re about $200 each, with a 5% discount from digiboat).

Oh and the extra detail available from the c-map vector charts is extraordinary! It leaves the old electronic Admiralty Charts feeling like, well ... paper!

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