Garmin GPSMAP 7400 Series Owner's Manual

Also see for GPSMAP 8000 Series: Owner's manual Quick start manual Instructions Owner's manual Installation instructions

Contents

Garmin GPSMAP 7400 Series Owner's Manual Manual pdf 43 page image

Safe Depth: Sets the minimum depth (chart depth datum) thechartplotter uses when calculating an Auto Guidance line.NOTE: The minimum safe depth for the premium charts is 3feet. If you enter a Safe Depth value of less than 3 feet, thecharts only use depths of 3 feet for Auto Guidance routecalculations.Safe Height: Sets the minimum height (chart height datum) of abridge that your boat can safely travel under.Shoreline Distance: Sets how close to the shore you want theAuto Guidance line to be placed. The Auto Guidance linemay move if you change this setting while navigating. Theavailable values for this setting are relative, not absolute. Toensure that the Auto Guidance line is placed the appropriatedistance from shore, you can assess the placement of theAuto Guidance line using one or more familiar destinationsthat require navigation through a narrow waterway (Adjustingthe Distance from Shore).Adjusting the Distance from ShoreThe Shoreline Distance setting indicates how close to the shoreyou want the Auto Guidance line to be placed. The AutoGuidance line may move if you change this setting whilenavigating. The available values for the Shoreline Distancesetting are relative, not absolute. To ensure the Auto Guidanceline is placed the appropriate distance from shore, you canassess the placement of the Auto Guidance line using one ormore familiar destinations that require navigation through anarrow waterway.1 Dock your vessel or drop the anchor.2 Select Settings > Preferences > Navigation > AutoGuidance > 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, anddetermine whether the line safely avoids known obstaclesand 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 > AutoGuidance > Shoreline Distance > Far.• If the turns in the Auto Guidance line are too wide, selectSettings > Preferences > Navigation > Auto Guidance> Shoreline Distance > Near.7 If you selected Near or Far in step 6, review the placement ofthe Auto Guidance line, and determine whether the linesafely avoids known obstacles and the turns enable efficienttravel.Auto Guidance maintains a wide clearance from obstacles inopen water, even if you set the Shoreline Distance setting toNear or Nearest. As a result, the chartplotter may notreposition the Auto Guidance line, unless the destinationselected 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 > AutoGuidance > Shoreline Distance > Farthest.• If the turns in the Auto Guidance line are too wide, selectSettings > Preferences > Navigation > Auto Guidance> Shoreline Distance > Nearest.9 If you selected Nearest or Farthest in step 8, review theplacement of the Auto Guidance line, and determinewhether the line safely avoids known obstacles and the turnsenable efficient travel.Auto Guidance maintains a wide clearance from obstacles inopen water, even if you set the Shoreline Distance setting toNear or Nearest. As a result, the chartplotter may notreposition the Auto Guidance line, unless the destinationselected requires navigation through a narrow waterway.10Repeat steps 3 through 9 at least once more, using adifferent destination each time, until you are familiar with thefunctionality of the Shoreline Distance setting.Communications SettingsNMEA 0183 SettingsSelect Settings > Communications > NMEA 0183 Setup.Port Types: See Setting the Communication Format for EachNMEA 0183 Port.Output Sentences: See Configuring NMEA 0183 OutputSentences.Position Precision: Adjusts the number of digits to the right ofthe decimal point for transmission of NMEA output.XTE Precision: Adjusts the number of digits to the right of thedecimal point for NMEA crosstalk error output.Waypoint IDs: Sets the device to transmit waypoint names ornumbers via NMEA 0183 while navigating. Using numbersmay resolve compatibility issues with older NMEA 0183autopilots.Defaults: Restores the NMEA 0183 settings to the originalfactory defaults.Diagnostics: Displays NMEA 0183 diagnostic information.Configuring NMEA 0183 Output SentencesYou can enable and disable NMEA 0183 output sentences.1 Select Settings > Communications > NMEA 0183 Setup >Output Sentences.2 Select an option.3 Select one or more NMEA 0183 output sentences, and selectBack.4 Repeat steps 2 and 3 to enable or disable additional outputsentences.Setting the Communication Format for Each NMEA 0183PortYou can configure the communication format for each internalNMEA 0183 port when connecting your chartplotter to externalNMEA 0183 devices, a computer, or other Garmin devices.1 Select Settings > Communications > NMEA 0183 Setup >Port Types.2 Select an input or output port.3 Select a format:• To support the input or output of standard NMEA 0183data, DSC, and sonar NMEA input support for the DPT,MTW, and VHW sentences, select NMEA Std..• To support the input or output of standard NMEA 0183data for most AIS receivers, select NMEA High Speed.• To support the input or output of Garmin proprietary datafor interfacing with Garmin software, select Garmin.4 Repeat steps 2–3 to configure additional input or outputports.NMEA 2000 SettingsSelect Settings > Communications > NMEA 2000 Setup.Device List: Displays the devices connected to the network.Label Devices: Changes the labels for available connecteddevices.Device Configuration 37