Garmin GPSMAP A12 Owner's Manual

Also see for GPSMAP 7400 Series: Owner's manual Owner's manual Installation insrtuctions Owner's manual Installation instructions

Contents

Garmin GPSMAP A12 Owner's Manual Manual pdf 23 page image

Navigation with a ChartplotterWARNINGAll route and navigation lines displayed on the chartplotter areonly intended to provide general route guidance or to identifyproper channels, and are not intended to be precisely followed.Always defer to the navaids and conditions on the water whennavigating to avoid groundings or hazards that could result invessel damage, personal injury, or death.The Auto Guidance feature is based on electronic chartinformation. That data does not ensure obstacle and bottomclearance. Carefully compare the course to all visual sightings,and avoid any land, shallow water, or other obstacles that maybe in your path.When using Go To, a direct course and a corrected course maypass over land or shallow water. Use visual sightings, and steerto avoid land, shallow water, and other dangerous objects.CAUTIONIf your vessel has an autopilot system, a dedicated autopilotcontrol display must be installed at each steering helm in orderto disable the autopilot system.NOTE: Some chart views are available with premium charts, insome areas.To navigate, you must choose a destination, set a course orcreate a route, and follow the course or route. You can followthe course or the route on the Navigation chart, Fishing chart,Perspective 3D chart view, or Mariner’s Eye 3D chart view.You can set and follow a course to a destination using one ofthree methods: Go To, Route To, or Auto Guidance.Go To: Takes you directly to the destination. This is thestandard option for navigating to a destination. Thechartplotter creates a straight-line course or navigation line tothe destination. The path may run over land and otherobstacles.Route To: Creates a route from your location to a destination,allowing you to add turns along the way. This option providesa straight-line course to the destination, but allows you to addturns into the route to avoid land and other obstacles.Auto Guidance: Uses the specified information about yourvessel and chart data to determine the best path to yourdestination. This option is available only when using acompatible premium chart in a compatible chartplotter. Itprovides a turn-by-turn navigation path to the destination,avoiding land and other obstacles (Auto Guidance,page 18).When you are using a compatible Garmin autopilotconnected to the chartplotter using NMEA 2000, the autopilotfollows the Auto Guidance route.NOTE: Auto Guidance is available with premium charts, insome areas.Basic Navigation QuestionsQuestion AnswerHow do I make thechartplotter point me in thedirection in which I want to go(bearing)?Navigate using Go To (Setting andFollowing a Direct Course Using Go To,page 15).How do I make the deviceguide me along a straight line(minimizing cross track) to alocation using the shortestdistance from the presentlocation?Build a single-leg route and navigate itusing Route To (Creating andNavigating a Route From Your PresentLocation, page 17).Question AnswerHow do I make the deviceguide me to a location whileavoiding charted obstacles?Build a multi-leg route and navigate itusing Route To (Creating andNavigating a Route From Your PresentLocation, page 17).How do I make the devicesteer my automatic pilot?Navigate using Route To (Creating andNavigating a Route From Your PresentLocation, page 17).Can the device create a pathfor me?If you have premium maps that supportAuto Guidance and are in an areacovered by Auto Guidance, navigateusing Auto Guidance (Setting andFollowing an Auto Guidance Path,page 18).How do I change the AutoGuidance settings for myboat?See Auto Guidance PathConfigurations, page 18.DestinationsYou can select destinations using various charts and 3D chartviews or using the lists.Searching for a Destination by NameYou can search for saved waypoints, saved routes, savedtracks, and marine services destinations by name.1 Select Info > Services > Search by Name.2 Enter at least a portion of the name of your destination.3 If necessary, select Done.The 50 nearest destinations that contain your search criteriaappear.4 Select the destination.Selecting a Destination Using the Navigation ChartFrom the Navigation chart, select a destination.Searching for a Marine Services DestinationNOTE: This feature is available with premium charts, in someareas.The chartplotter contains information for thousands ofdestinations offering marine services.1 Select Info > Services.2 Select Offshore Services or Inland Services.3 If necessary, select the marine service category.The chartplotter shows a list of the nearest locations and thedistance and bearing to each.4 Select a destination.You can select Next Page or Previous Page to viewadditional information or to show the location on a chart.Setting and Following a Direct Course Using Go ToWARNINGWhen using Go To, a direct course and a corrected course maypass over land or shallow water. Use visual sightings, and steerto avoid land, shallow water, and other dangerous objects.You can set and follow a direct course from your current locationto a selected destination.1 Select a destination (Destinations, page 15).2 Select Navigate To > Go To.A magenta line appears. In the center of the magenta line isa thinner purple line that represents the corrected coursefrom your current location to the destination. The correctedcourse is dynamic, and it moves with your boat when you areoff course.3 Follow the magenta line, steering to avoid land, shallowwater, and other obstacles.Navigation with a Chartplotter 15