Garmin GPSMAP 7410 Owner s Manual - Page 19

This allows you to time your arrival at a location, such as a bridge opening or a race starting line. 1 From the Navigation chart, select Menu. 2 If necessary, select Navigation Options. 3 Select Timed Arrival. TIP: You can quickly open the Timed Arrival menu by selecting a point on the path or route. Auto Guidance Line Configurations CAUTION The Safe Depth and Safe Height settings influence how the chartplotter calculates an Auto Guidance line. If an area has an unknown water depth or an unknown obstacle height, the Auto Guidance line is not calculated in that area. If an area at the beginning or the end of an Auto Guidance line is shallower than the safe water depth or lower than the safe obstacle height, the Auto Guidance line may or may not 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. You can set the parameters the chartplotter uses when calculating an Auto Guidance line. NOTE: Not all settings apply to all maps. Preferred Depth: Sets the minimum depth (chart depth datum) the chartplotter uses when calculating an Auto Guidance line. NOTE: The minimum safe depth for the premium charts (made before 2016) is 3 feet. If you enter a Safe Depth value of less than 3 feet, the charts only use depths of 3 feet for Auto Guidance route calculations. Vertical Clearance: Sets the minimum height (chart height datum) of a bridge that your boat can safely travel under. Shoreline Distance: Sets 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 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 line using one or more familiar destinations that require navigation through a narrow waterway (Adjusting the Distance from Shore, page 13). 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 > Preferences > 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 > Navigation Options > Stop Navigation, and proceed to step 10. • If the Auto Guidance line is too close to known obstacles, select Settings > Preferences > Navigation > Auto Guidance > Shoreline Distance > Far. • If the turns in the Auto Guidance line are too wide, select Settings > Preferences > 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 > Navigation Options > Stop Navigation, and proceed to step 10. • If the Auto Guidance line is too close to known obstacles, select Settings > Preferences > Navigation > Auto Guidance > Shoreline Distance > Farthest. • If the turns in the Auto Guidance line are too wide, select Settings > Preferences > 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 From any chart or a 3D chart view, select Menu > Waypoints and Tracks > Tracks > On. A trailing line on the chart indicates your track. Setting the Color of the Active Track 1 Select Info > User Data > 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 Info > User Data > 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 Info > User Data > Tracks > Saved Tracks. Editing a Saved Track 1 Select Info > User Data > Tracks > Saved Tracks. 2 Select a track. Navigation with a Chartplotter 13