Garmin aera 795/796 Pilot’s Guide190-01194-00 Rev. A 37GPS NavigationOverview GPS Navigation Flight Planning Hazard Avoidance Additional Features Appendices Index2.2 HSI/PANELThe HSI/Panel shows GPS-derived data in a graphical format. Keep in mind thedifferences between the GPS-derived panel and mechanical instruments, as mechanicalpanel instruments use sensors that provide information different from that derivedusing GPS.Vertical SpeedHSIAltitudeHSI/PanelTurn Rate IndicatorGround SpeedCDI ScaleThe Panel shows a graphic Horizontal Situation Indicator (HSI) surrounded byadditional indicators.The graphic HSI depicts the course to the destination or the next waypoint in a flightplan, current ground track, off course error, and a To/From indication. The rotatingcompass indicates your current ground track.The course pointer and course deviation needle indicate the course and whether youare on the course. The Bug Indicator can be set to ‘Bearing’ (default), ‘Course to Steer’,a specific heading reference (‘User Selected’), or ‘Off’.Bearing is the compass direction from the present position to a destination waypoint.Course to Steer is the recommended direction to steer in order to reduce cross-trackerror and return to the course line.