I have a Garmin 545 as a backup on my boat. It is set up for TDs and has the XM Weather. Nothing like getting the Bouy info on the boat and the weather updates. It has been very accurate but the bouy info is the ticket. I pull up Diamond shoals buoy and the buoy off Virgina Beach to see what it is like before we leave the dock. It is just like having the computer on the boat!! The TDs have been pretty accurate as well. The only thing I dont like is not near as easy to navigate the pages as my Simrad ....Mark
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Somewhere off the coast of Carolina!!
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