Garmin GPSMAP 640 Owner's Manual

Also see for GPSMAP 640: Quick reference guide Declaration of conformity Installation instructions Quick reference guide Owner's manual

Contents

Garmin GPSMAP 640 Owner's Manual Manual pdf 46 page image

GPSMAP 640 Owner’s ManualMarine Mode: Advanced ConfigurationNote: Additional AIS and DSC configuration options areavailable from the Navigation chart options. See page 39.Configuring Navigation SettingsFrom the Home screen, touch Configure > Navigation.auto Guidance—select the Auto Guidance parameters for yourboat.Safe Depth—set the minimum depth (using chart depth data)allowed when calculating an auto-guidance path. A safe depth ofless than one meter is not allowed when using Auto Guidance.Safe Height—set the minimum height (using chart height data)of a bridge that your boat can safely travel under.Shoreline Distance—set how close you want to travel near theshore: Nearest, Near, Normal, Far, or Farthest. This is usedby the automatic guidance calculation to determine how closeto the shoreline you want the automatic-guidance line to be.Changing this while navigating an automatic-guidance line willrecalculate the path.Route Labels—for saved routes, this determines whether routeturns are indicated by number (Turn 1, Turn 2, and so on), bywaypoint name, or whether the description of turns is hidden.turn transition activation—set how the chartplotter transitions•••to the next leg in a route. Increasing time or distance can improveautopilot accuracy when navigating a route or an automatic-guidance line with many frequent turns, or when traveling at higherspeeds. Decreasing time or distance can improve autopilot accuracywhen navigating a straighter route or automatic-guidance line, orwhen traveling at slower speeds.turn transition time—set the time before a turn in a routethat you transition to the next leg.turn transition Distance—set the distance before a turn in aroute that you transition to the next leg.off—transition when you have arrived at the next leg.Configuring XM RadioFrom the Home screen, touch Configure > XM audio.Note: You must connect the optional GXM 40 XM receiver andhave a subscription to XM Radio to use XM Radio features. Formore information, refer to page 47.Volume Slider—adjust the XM volume level.Volume—show the volume level as a percentage. Touch Volume tomute the XM Radio.Channel Guide—select the specific XM channel within thecurrently selected category.•••