While only four satellites are required for a position fix, Lowrance's GlobalMap 100 utilizes nine additional channels to lock-on to any visible satellites and then compares this data with data from the original three satellites. No receiver is capable of maintaining satellite fix more reliably than this revolutionary new Rockwell-powered receiver. The GlobalMap 100 is external antenna capable and includes over 100 map Datums plus UTM, MGRS, British, Irish, German, Taiwan, Swedish, Finnish, Swiss and New Zealand grid reference systems. The GlobalMap 100 is completely sealed and waterproof to withstand even the harshest of environmental conditions and is backed by a Full One-Year Warranty . NEW enhanced built-in World Map, with even more North American Detail of lakes, rivers, streams and highways .
Position updates every second.
100 vertical and 65 horizontal pixels provide sharp display detail. 28 different graphic icons make it easy to note special points of interest on-screen while navigating. Savable plot trails with up to 3,000 points lets user backtrack any journey. Up to 99 Savable Routes. Detailed Plotter Screen shows the user's planned route from waypoint to waypoint, plus a record of where you've been.