The auto-guidance line may move if you change this setting while navigating. The available values for the Shoreline Distance setting (Nearest, Near, Normal, far, or farthest) are relative, not absolute. To ensure that the auto-guidance line is placed an 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. To set the distance from shore: 1. Dock your boat or drop anchor. 2. From the Home screen, select Configure > Preferences > Navigation > Auto Guidance > Shoreline Dist. > Normal. 3. From Home screen, select Where To? > Waypoints. 4. Select a waypoint for a destination that you have navigated to previously. 5. Select Navigate To > Guide To. 6. Review the placement of the Auto Guidance line. Determine whether the line safely avoids known obstacles, and whether the turns enable efficient travel. 7. Complete an action: • If the placement of the Auto Guidance line is satisfactory, select MENU > Navigation Options > Stop Navigation. Proceed to step 11. • If the Auto Guidance line is too close to known obstacles, from the Home screen, select Configure > Preferences > Navigation > Auto Guidance > Shoreline Distance > Far. • If the turns in the Auto Guidance line are too wide, from the Home screen, select Configure > Preferences > Navigation > Auto Guidance > Shoreline Distance > Near. GPSMAP 400/500 Series Owner’s Manual 4 Configuring the Chartplotter 8. If you selected Near or Far in step 7, review the placement of the Auto Guidance line. Determine whether the line safely avoids known obstacles, and whether the turns enable efficient travel. 9. Complete an action: • If the placement of the Auto Guidance line is satisfactory, select MENU > Navigation Options > Stop Navigation. Proceed to step 11. • If the Auto Guidance line is too close to known obstacles, from the Home screen, select Configure > Preferences > Navigation > Auto Guidance > Shoreline Distance > Farthest. • If the turns in the Auto Guidance line are too wide, from the Home screen, select Configure > Preferences > Navigation > Auto Guidance > Shoreline Distance > Nearest. 10.If you selected Nearest or Farthest in step 9, review the placement of the Auto Guidance line. Determine whether the line safely avoids known obstacles, and whether the turns enable efficient travel. 11.Repeat steps 1-10 at least once more, using a different destination each time, until you are familiar with the functionality of the Shoreline Distance setting. Configuring Communications Settings To change the communications settings from the Home screen, select Configure > Communications. Serial Port 1—configures the input/output format for serial port 1 to use when connecting your chartplotter to external NMEA devices, a computer, or other Garmin devices. • garmin data Transfer—supports the input or output of Garmin-proprietary data for communicating with Garmin software. • NMEa Standard—supports the input or output of standard NMEA 0183 data, DSC, and sonar NMEA input support for the DPT, MTW, and VHW sentences. • NMEa High Speed—supports the input or output of standard 0183 data for most AIS receivers. Serial Port 2 (if supported)—configures the input/output format for serial port 2 to use when connecting your chartplotter to external NMEA devices, a computer, or other Garmin devices. NMEa 0183 Setup—enable or disable NMEA 0183 output sentences for sounder, route, system, and Garmin NMEA settings. To enable or disable NMEA 0183 output sentences: 1. From the Home screen, select Configure > Communications > NMEA 0183 Setup. 50 GPSMAP 400/500 Series Owner’s Manual Configuring the Chartplotter 2. Select a setting (Sounder, Route, System, or Garmin). 3. Select the NMEA 0183 output sentence to toggle the output on or off. • Posn. Precision—adjust the number of digits (Two digits, Three digits, or four digits) to the right of the decimal point for transmission of NMEA output. • waypoint ids—determine how the unit identifies waypoint identifiers (Names or Numbers). • defaults—resets all NMEA 0183 sentences to the default setting. NMEa 2000 Setup— • device List—lists the NMEA 2000 devices on your network. If a NMEA 2000 device has configuration options or settings, select the device for a list of options. • Label devices—allows you to name your engines and tanks so that you can better identify their location on the boat. To label engines as numbers: From the Home screen, select Configure > Communications > NMEA 2000 Setup > Label Devices > Change Engine Labels > Use Numbers. To label engines as names: 1. From the Home screen, select Configure > Communications > NMEA 2000 Setup > Label Devices > Change Engine Labels > Label Type > Choose Names. 2. Select the engine you want to name. 3. Select the location of the engine: Port (P), Center (C), Starboard (S), Fore (F), or Aft (A). 4. Select the label you want to use for the engine. To label tanks as numbers: 1. From ...