Garmin ECHOMAP Plus 45cv Owners Manual PDF - Page 22
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an area at the beginning or the end of an Auto Guidance path is shallower than the Preferred Depth or lower than the Vertical Clearance settings, the Auto Guidance path may not be calculated in that area, depending on the map data. On the chart, the course through those areas appears as a gray line or a magenta and gray striped line. When your boat enters one of those areas, a warning message appears. NOTE: Auto Guidance is available with premium charts, in some areas. NOTE: Not all settings apply to all maps. You can set the parameters the chartplotter uses when calculating an Auto Guidance path. Preferred Depth: Sets the minimum water depth, based on chart depth data, that your boat can safely travel over. NOTE: The minimum water depth for the premium charts (made before 2016) is 3 feet. If you enter a value of less than 3 feet, the charts only use depths of 3 feet for Auto Guidance path calculations. Vertical Clearance: Sets the minimum height of a bridge or obstacle, based on chart data, that your boat can safely travel under. Shoreline Distance: Sets how close to the shore you want the Auto Guidance path to be placed. The Auto Guidance path may move if you change this setting while navigating. The available values for this setting are relative, not absolute. To ensure that the Auto Guidance line is placed the appropriate distance from shore, you can assess the placement of the Auto Guidance path using one or more familiar destinations that require navigation through a narrow waterway (Adjusting the Distance from Shore, page 16). Adjusting the Distance from Shore The Shoreline Distance setting indicates how close to the shore you want the Auto Guidance line to be placed. The Auto Guidance line may move if you change this setting while navigating. The available values for the Shoreline Distance setting are relative, not absolute. To ensure the Auto Guidance line is placed the appropriate distance from shore, you can assess the placement of the Auto Guidance line using one or more familiar destinations that require navigation through a narrow waterway. 1 Dock your vessel or drop the anchor. 2 Select Settings > Navigation > Auto Guidance > Shoreline Distance > Normal. 3 Select a destination that you have navigated to previously. 4 Select Navigate To > Auto Guidance. 5 Review the placement of the Auto Guidance line, and determine whether the line safely avoids known obstacles and the turns enable efficient travel. 6 Select an option: • If the placement of the Auto Guidance line is satisfactory, select MENU > Stop Navigation, and proceed to step 10. • If the Auto Guidance line is too close to known obstacles, select Settings > Navigation > Auto Guidance > Shoreline Distance > Far. • If the turns in the Auto Guidance line are too wide, select Settings > Navigation > Auto Guidance > Shoreline Distance > Near. 7 If you selected Near or Far in step 6, review the placement of the Auto Guidance line, and determine whether the line safely avoids known obstacles and the turns enable efficient travel. Auto Guidance maintains a wide clearance from obstacles in open water, even if you set the Shoreline Distance setting to Near or Nearest. As a result, the chartplotter may not reposition the Auto Guidance line, unless the destination selected requires navigation through a narrow waterway. 8 Select an option: • If the placement of the Auto Guidance line is satisfactory, select MENU > Stop Navigation, and proceed to step 10. • If the Auto Guidance line is too close to known obstacles, select Settings > Navigation > Auto Guidance > Shoreline Distance > Farthest. • If the turns in the Auto Guidance line are too wide, select Settings > Navigation > Auto Guidance > Shoreline Distance > Nearest. 9 If you selected Nearest or Farthest in step 8, review the placement of the Auto Guidance line, and determine whether the line safely avoids known obstacles and the turns enable efficient travel. Auto Guidance maintains a wide clearance from obstacles in open water, even if you set the Shoreline Distance setting to Near or Nearest. As a result, the chartplotter may not reposition the Auto Guidance line, unless the destination selected requires navigation through a narrow waterway. 10Repeat steps 3 through 9 at least once more, using a different destination each time, until you are familiar with the functionality of the Shoreline Distance setting. Tracks A track is a recording of the path of your boat. The track currently being recorded is called the active track, and it can be saved. You can show tracks in each chart or 3D chart view. Showing Tracks 1 From a chart, select MENU > Layers > User Data > Tracks. 2 Select the tracks to display. A trailing line on the chart indicates your track. Setting the Color of the Active Track 1 Select Nav Info > Tracks > Active Track Options > Track Color. 2 Select a track color. Saving the Active Track The track currently being recorded is called the active track. 1 Select Nav Info > Tracks > Save Active Track. 2 Select an option: • Select the time the active track began. • Select Entire Log. 3 Select Save. Viewing a List of Saved Tracks Select Nav Info > Tracks > Saved Tracks. Editing a Saved Track 1 Select Nav Info > Tracks > Saved Tracks. 2 Select a track. 3 Select Edit Track. 4 Select an option: • Select Name, and enter the new name. • Select Track Color, and select a color. Saving a Track as a Route 1 Select Nav Info > Tracks > Saved Tracks. 2 Select a track. 3 Select Review > Edit Track > Save As > Save as Route. Browsing for and Navigating a Recorded Track Before you can browse a list of tracks and navigate to them, you must record and save at least one track (Tracks, page 16). 16 Navigation with a Chartplotter