The operator's manual that should come with every boater's GPS receiver or chart plotter. Since the first edition of GPS for Mariners, GPS has achieved almost universal acceptance. No one needs to be told in detail how the system works or why it is reliable anymore. Boaters today accept GPS as the ultimate navigation tool—they just want to know how to use it. The second edition of GPS for Mariners has much less GPS tech-talk and theory and more instead on getting the most out of today’s more advanced and powerful units. First edition sold more than 35,000 copies. Contains brand-new content on the features and capabilities of new GPS receivers and chart plotters. Color screen shots of the displays take the mystery out of interpretation. Readers will become informed GPS buyers as well as informed GPS users. Explains the ins and outs of navigation software . Shows how to interface GPS with a PC, radar, or autopilot. Robert J. Sweet (East Falmouth, MA) is the national director of education for the U. S. Power Squadrons, America's largest membership boating educator. With more than 30 years' boating experience, Bob is rated Senior Navigator, the U. S. Power Squadrons' highest grade.