Garmin GPSMAP 640 Manual

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

Contents

10 GPSMAP 640 XM WX Satellite Weather and XM Satellite Radio SupplementMarine Mode: Using XM WX Weather and Audio3. Select Menu.4. Select Navigation Chart Setup or Fishing Chart Setup5. Select Weather > Legend > on.Showing Cloud Cover Data on the navigation ChartBefore you can show cloud cover data on the Navigation chart, you mustturn on the weather overlay (page 9).From the Home screen, select Charts > Navigation Chart > Menu >Navigation Chart Setup > Weather > Cloud Cover > on.Showing Visibility Data on the navigation ChartVisibility is the forecast maximum horizontal distance that can be seen atthe surface.Before you can show visibility data on the Navigation chart, you mustturn on the weather overlay (page 9).From the Home screen, select Charts > Navigation Chart > Menu >Navigation Chart Setup > Weather > Visibility > on.Showing Sea Temperature Data on the Fishing ChartBefore you can show sea temperature data on the Fishing chart, you mustturn on the weather overlay (page 9).From the Home screen, select Charts > Fishing Chart > Menu >Navigation Chart Setup > Weather > Sea temp > on.Showing Fish Forecasting Data on the Fishing ChartBefore you can show fish forecasting data on the Fishing chart, you mustturn on the weather overlay (page 9).You can show areas that contain optimal weather conditions for specificspecies of fish.1. From the Home screen, select Charts > Fishing Chart > Menu >Fishing Chart Setup > Weather > Fish Species > on.2. Select a species of fish.3. Repeat step 2 to show areas with optimal weather conditions foradditional species of fish.4. Select a shaded area to view the fish species that are included in theshaded area.Weather alarmsSetting Weather alarmsYou can set an alarm to sound when certain weather conditions occur.1. From the Home screen, select Configure > Alarms > Weather.2. Complete one or more actions:• Select Marine > on.• Select tornado > on.• Select Severe Storm > on.• Select Flood > on.• Select Flash Flood > on.