
01-03-2009
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Senior Member
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Join Date: Apr 2006
Posts: 7,087
Rep Power: 8
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Ryan, pretty much any GPS will do these days. Your choices are to buy one that uses a serial or USB interface--match whatever your computer and nav software need--or even Bluetooth GPS, which is probably just a waste of power on sailboat.
Look for modern chipset, like SirfIII (Sirf3) which is more sensitive and better able to see the satellites through a cabin top, etc. If the GPS maker supplies a figure for "sensitivity" the new ones will all be something like 150db or more. And they tend to use less power, so batteries will last longer than they used to.
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