After my test without the manual, I read through it to see what features I had overlooked. The 110-page manual is rather comprehensive, and would probably benefit from an index. I found that the FX324 Map computes and displays position, speed over ground, course over ground, range and bearing, time to go, velocity to destination, estimated time of arrival, cross-track error and, of course, chart graphics. Light list and waypoint information is displayed on pop-up windows. Data pertaining to tides and currents also is available.