Garmin GPSMAP 175 Owner's Manual

Garmin GPSMAP 175 Owner's Manual Manual pdf 22 page image

A. In this example, ourboat is right of courseby 1/16th of a mile.(The base of the mapis equal to the scaleselected at thebottom right of thepage.) To get back oncourse, steer left.B. Here, our boat is offcourse to the left. To get back on course, steer right. A digital readout of yourcrosstrack error can be displayed in any of the six data fields (see page 35).GETTING STARTEDNavigation PageNow that we’re navigating to an actual destination, let’s move on to the nextpage of the GPSMAP 175 system, the navigation page:1. Press the J key.The navigation page provides graphic steering guidance to yourdestination. The bearing (BRG) and distance (DIS) to the destination, withyour current course (COG) and speed over ground (SOG), are displayedat the top of the page, along with a compass tape to indicate your cardinalheading. The estimated time enroute (ETE) and velocity made good(VMG, or the rate you are closing in on your destination) are displayed at thebottom of the page.As you head toward the destination, the middle section of the page givesyou visual guidance to your waypoint on a graphic highway, which displaysthe route and nearby waypoints on screen. The moving arrow below thehighway always points to the destination waypoint relative to the directionyou’re moving. The line down the center of the highway represents yourdesired track, while the bottom of the page provides a graphic indication ofyour crosstrack error (the distance and direction you are off course)according to the scale at the bottom right of the page.18DataFieldsCDIScaleGraphicHighwayCompass TapePointer toWaypoint