Owner's Manual
Page 42
...between Water (from a water speed sensor) and GPS (from the calculated GPS speed). Touch Wind to do so by a Garmin Product Support Specialist. Touch Custom to individually define... measure for atmospheric (Millibars or Inches of system events. NOTE: You must be receiving NMEA sonar depth data and temperature data to Fahrenheit (ºF) or Celsius (ºC)....heading information. • Auto Mag Var (Automatic Magnetic Variation)-automatically set a custom magnetic variation value. 34 GPSMAP 640 Owner's Manual Changing Units of measure: Statute (mh, ft, ºF), Metric (kh, m, º...
...between Water (from a water speed sensor) and GPS (from the calculated GPS speed). Touch Wind to do so by a Garmin Product Support Specialist. Touch Custom to individually define... measure for atmospheric (Millibars or Inches of system events. NOTE: You must be receiving NMEA sonar depth data and temperature data to Fahrenheit (ºF) or Celsius (ºC)....heading information. • Auto Mag Var (Automatic Magnetic Variation)-automatically set a custom magnetic variation value. 34 GPSMAP 640 Owner's Manual Changing Units of measure: Statute (mh, ft, ºF), Metric (kh, m, º...
Owner's Manual
Page 44
...on for the clock alarm to sound when the GPS location accuracy falls outside the specified value. GPS Accuracy-set an alarm to sound when the depth is 2°F (1.1°C) above or below the specified temperature. GPSMAP 640 Owner's Manual Water Temp-set an alarm to... and Turns (when navigating a route with turns). • Activation-set the alarm to receive sonar information. Marine Mode: Advanced Configuration Configuring Alarm Settings You can configure the GPSMAP 640 to view weather information. Setting Weather Alarms NOTE: You must connect an optional sonar module ...
...on for the clock alarm to sound when the GPS location accuracy falls outside the specified value. GPS Accuracy-set an alarm to sound when the depth is 2°F (1.1°C) above or below the specified temperature. GPSMAP 640 Owner's Manual Water Temp-set an alarm to... and Turns (when navigating a route with turns). • Activation-set the alarm to receive sonar information. Marine Mode: Advanced Configuration Configuring Alarm Settings You can configure the GPSMAP 640 to view weather information. Setting Weather Alarms NOTE: You must connect an optional sonar module ...
Owner's Manual
Page 82
... white backlight; Battery type: User-replaceable rechargeable lithium-ion battery GPS receiver: High-sensitivity Compass-safe distance: 17 in . (132 mm) diagonal, 800 × 480 pixels; For more information about GPS, go to www.garmin.com/aboutGPS. touchscreen Case: Waterproof to IEC 529-IPX-7 Operating...stored indefinitely. Extras and Optional Accessories For more information about optional accessories, go to http://buy.garmin.com or www.garmin.com/extras, or contact your GPSMAP 640 has acquired satellite signals, the signal strength bars on the Home screen (or Menu page) are...
... white backlight; Battery type: User-replaceable rechargeable lithium-ion battery GPS receiver: High-sensitivity Compass-safe distance: 17 in . (132 mm) diagonal, 800 × 480 pixels; For more information about GPS, go to www.garmin.com/aboutGPS. touchscreen Case: Waterproof to IEC 529-IPX-7 Operating...stored indefinitely. Extras and Optional Accessories For more information about optional accessories, go to http://buy.garmin.com or www.garmin.com/extras, or contact your GPSMAP 640 has acquired satellite signals, the signal strength bars on the Home screen (or Menu page) are...
Owner's Manual
Page 85
...cannot be created. Contact product support. Drift Alarm-the boat has moved a user-defined distance. GPS Accuracy Alarm-the GPS accuracy has fallen outside the user-set value. GPSMAP 640 Owner's Manual 77 Deep Water Alarm-(sonar) the boat has entered the user-defined value for deep... water. Appendix Directory Memory is Full Can't Create Entry-DSC the directory is a flash flood warning in the directory. DSC Position Report Received...
...cannot be created. Contact product support. Drift Alarm-the boat has moved a user-defined distance. GPS Accuracy Alarm-the GPS accuracy has fallen outside the user-set value. GPSMAP 640 Owner's Manual 77 Deep Water Alarm-(sonar) the boat has entered the user-defined value for deep... water. Appendix Directory Memory is Full Can't Create Entry-DSC the directory is a flash flood warning in the directory. DSC Position Report Received...