With Spring coming up soon, boat owners are musing about new gear for their vessels. It might be web-browsing for a radar, or flipping catalog pages looking AIS units or even mosying along the dock looking at what other owners have on their boats. Well, if you need something to push you toward a decision, Furuno is offering rebates ranging from $50 to $300 on a variety of its products. '' National Oceanic and Atmopheric Administration nautical charts carry this note; "WARNING ” The prudent mariner will not rely solely on any single aid to navigation, particularly on floating aids. See U.S. Coast Guard Light List and U.S.