Track (Trk) AngleTrack Angle is the angle of your actual direction oftravel. Track is shown from 0 to 359 degrees in onedegree increments. Track is computed using themagnetic variation at the Present Position. TheTrack value will be dashed if the FROM or TOwaypoints are blank, if the GPS receiver does nothave a valid position, or if ground speed is less than5 knots.Track Angle Error (Tae)Track Angle Error is the difference between theDesired Track and Track Angle (Dtk - Trk). TrackAngle Error is shown from 0 to 359 degrees in onedegree increments. Track Angle Error is computedusing the magnetic variation at the Present Position.The Track Angle Error value will be dashed if theFROM or TO waypoints are blank, if the GPSreceiver does not have a valid position, or if groundspeed is less than 5 knots.Ground Speed (GS)Ground Speed is the measure of your progress overthe ground, not airspeed. Ground Speed units arefrom 0 to 999 knots in 1 knot increments. TheGround Speed value will be replaced with dashes ifthe speed is less than 5 knots, there is no valid GPSposition, or the TO waypoint is blank. See page 71for details on changing units of measurement.Trk 173 173 Ground Sp 170 kts23Navigation Basics
