Garmin GPSMAP 580 Owner's Manual page 83

Flasher—allows you to show a graphic flasher representation on
the far right side of the sonar display. This graphic flasher shows
structure and bottom returns much the same as a true flasher. You
might find this feature useful when using fish symbols.
Temperature Graph—allows you to show a temperature graph
along the bottom of the Sonar page.
Background Color—allows you to select the color for the Sonar
page and the sonar on the Map Split page.
White
background
Temperature
graph
Sonar page with the Sonar Display settings changed
GPSMAP 580/585 Owner's Manual
Viewing the Temperature
Use the Temperature sub tab to view a graph of water temperature
changes over a period of time. The graph reads from right to left
so that the most recent temperature measured appears on the far
right side of the graph. The dotted lines within the graph indicate
intervals in the temperature scale and the duration of time. To view
temperature information, you must select Temp (or Temp, Spd.) as
the transducer type on the Setup sub tab.
Graphic flasher
Color bar
Depth scale
in corners
NOTE: You must be receiving proper sonar data to view
temperature information.
To access the Temperature sub tab:
1. On the Main menu, highlight the Sonar tab.
2. Select the Temperature sub tab.
Temperature sub tab
Setting Up and Using Sonar
77