38 GPSMAP® 4000/5000 Series Owner’s ManualNavigation• Select the time the current track began or Midnight, if shown.• Select entire Log.3. Select Follow track.4. Review the course indicated by the colored line.5. Follow the colored line, steering to avoid land, shallow water, and other obstacles.Clearing the Active TrackFrom the Home screen, select information > User Data > tracks > Clear Active track.The track memory is cleared, and the current track continues to be recorded.Managing the Track Log Memory During Recording1. From the Home screen, select information > User Data > tracks > Active track options > RecordMode.2. Complete an action:• Select Fill to record a track log until the track memory is full.• Select Wrap to continuously record a track log, replacing the oldest track data with new data.Configuring the Recording Interval of the Track LogYou can indicate the frequency at which the track plot is recorded. Recording more-frequent plots is moreaccurate but fills the track log faster.1. From the Home screen, select information > User Data > tracks > Active track options > interval >interval.2. Complete an action:• Select Distance to record the track based on a distance between points. Select Change. Set thedistance. Select Done.• Select time to record the track based on a time interval. Select Change. Set the time. Select Done.• Select Resolution to record the track plot based on a variance from your course. Select Change. Enterthe maximum error allowed from the true course before recording a track point. Select Done.3. Select Done.Copying TracksSee “Chartplotter Data Management” (page 60).Deleting All Saved Waypoints, Routes, and TracksFrom the Home screen, select information > User Data > Clear User Data > All.Navigating with a Garmin AutopilotWhen you start navigation (Go To, Route To, or Guide To), if you are connected through a National MarineElectronics Association (NMEA) 2000 network to a compatible Garmin autopilot (such as the GHP™ 10), youare prompted to engage the autopilot.