Garmin GPSMAP 8700 Black Box Owners Manual - Page 28

• To navigate the route from the destination point used when the route was created, to the right of the original route, select Backward - Starboard. 6 If necessary, select Done. A magenta line appears. In the center of the magenta line is a thinner purple line that represents the corrected course from your present location to the destination. The corrected course is dynamic, and it moves with your boat when you are off course. 7 Review the course indicated by the magenta line. 8 Follow the magenta line along each leg in the route, steering to avoid land, shallow water, and other obstacles. 9 If you are off course, follow the purple line (corrected course) to go to your destination, or steer back to the magenta line (direct course). Initiating a Search Pattern You can initiate a search pattern to search an area. Different patterns are better suited for different search situations. 1 Select Info > User Data > Routes & Auto Guidance Paths > New > Route Using SAR Pattern. 2 Select a pattern: • Select Sector Search when the location of the object is fairly known, the search area is small, and an intensive search is needed. • Select Expanding Square when the location of the object is somewhat doubtful, the search area is small, and an intensive search is needed. • Select Creeping/Parallel Line when the location of the object is approximate, the search area is small, and a consistent search is needed. 3 Enter the search parameters. 4 Select Done. 5 If necessary, select Engage. Deleting a Saved Route 1 Select Info > User Data > Routes & Auto Guidance Paths. 2 Select a route. 3 Select Review > Delete. Deleting All Saved Routes Select Info > User Data > Delete User Data > Routes & Auto Guidance Paths. Auto Guidance WARNING The Auto Guidance feature is based on electronic chart information. That data does not ensure obstacle and bottom clearance. Carefully compare the course to all visual sightings, and avoid any land, shallow water, or other obstacles that may be in your path. All route and navigation lines displayed on the chartplotter are only intended to provide general route guidance or to identify proper channels, and are not intended to be precisely followed. Always defer to the navaids and conditions on the water when navigating to avoid groundings or hazards that could result in vessel damage, personal injury, or death. NOTE: Auto Guidance is available with premium charts, in some areas. You can use Auto Guidance to plot the best path to your destination. Auto Guidance uses your chartplotter to scan chart data, such as water depth and known obstacles, to calculate a suggested path. You can adjust the path during navigation. Setting and Following an Auto Guidance Path 1 Select a destination (Destinations, page 17). 2 Select Navigate To > Auto Guidance. 3 Review the path, indicated by the magenta line. 4 Select Start Navigation. 5 Follow the magenta line, steering to avoid land, shallow water, and other obstacles. NOTE: When using Auto Guidance, a gray segment within any part of the magenta line indicates that Auto Guidance cannot calculate part of the Auto Guidance line. This is due to the settings for minimum safe water depth and minimum safe obstacle height. Creating and Saving an Auto Guidance Path 1 Select Info > User Data > Routes & Auto Guidance Paths > New > Auto Guidance. 2 Select a starting point, and select Next. 3 Select a destination, and select Next. 4 Select an option: • To view a hazard and adjust the path near a hazard, select Hazard Review. • To adjust the path, select Adjust Path, and follow the onscreen instructions. • To delete the path, select Cancel Auto Guidance. • To save the path, select Done. Adjusting a Saved Auto Guidance Path 1 Select Info > User Data > Routes & Auto Guidance Paths. 2 Select a path, and select Review > Edit > Adjust Path. TIP: When navigating an Auto Guidance path, select the path on the navigation chart, and select Adjust Path. 3 Select a location on the path. 4 Drag the point to a new location. 5 If necessary, select a point, and select Remove. 6 Select Done. Canceling an Auto Guidance Calculation in Progress From the Navigation chart, select Menu > Cancel. TIP: You can select Back to quickly cancel the calculation. Setting a Timed Arrival You can use this feature on a route or an Auto Guidance path to get feedback about when you should arrive at a selected point. 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 Select Navigation Options > Timed Arrival. TIP: You can quickly open the Timed Arrival menu by selecting a point on the path or route. Auto Guidance Path Configurations CAUTION The Preferred Depth and Vertical Clearance settings influence how the chartplotter calculates an Auto Guidance path. If an area has an unknown water depth or an unknown obstacle height, the Auto Guidance path is not calculated in that area. If 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. 20 Navigation with a Chartplotter