Garmin GPSMAP 392, 398, 492, 498 Owner's Manual

Also see for GPSMAP 392, 398, 492, 498: Quick reference guide Specifications

Contents

GPSMAP 392/398/492/498 Owner’s Manual 99APPENDIX > N AVIGATION TERMSMap Pointer—an arrow pointing to your destination.Speed—the current velocity at which you are travelling, relative toa ground position. Also referred to as ground speed.Sunrise—the time at which the sun rises.Sunset—the time at which the sun sets.Time Of Day—the current time.Time To—the estimated time required to reach a Go Todestination, or the next waypoint in a route. Also known as“estimated time en route.”Time to Dest—the estimated time required to reach a Go Todestination, or the final waypoint in a route.Time to Next—the estimated time required to reach a Go Todestination, or the next waypoint in a route.To Course—the recommended direction to steer to reduce courseerror or stay on course. Provides the most efficient heading to getback to the course and proceed along your route.Track—the direction of movement relative to a ground position.Also referred to as “ground track.”Trip Odometer—a running tally of distance travelled since the lastreset. See also “Odometer.”Total Average Speed—average speed of unit for both moving andstopped speeds since last timer reset.Total Trip Timer—total time the unit has been in operation sincelast reset of the trip timers.Turn—the angle difference between the bearing to your destinationand your current track. L indicates you should turn left; R indicatesyou should turn right.VMG (Velocity Made Good)—the speed you are closing in on adestination along a course. Also referred to as the vector velocity toyour destination.Voltage—current voltage reading being received by unit.Water Speed—the speed through the water. This field is onlyactive if the GPSMAP 392/398/492/498 is receiving speed readingsfrom a transducer or NMEA device.Water Temp—the water temperature. This field is only active ifthe GPSMAP 392/398/492/498 is receiving speed readings from atransducer or NMEA device.Waypoint Destination—the final waypoint in the route, or thedestination waypoint.Waypoint Next—the next waypoint in the route.