Humminbird 580 Fish Finder User Manual


 
7
What’s On the Display
The 500 Series™ can display a variety of useful information about the area under
Timer - elapsed time with Temp/Speed
Accessory or GPS Receiver.
Depth - water depth; can be set to alarm when
the water becomes too shallow.
Speed - if a Temp/Speed accessory or GPS
Receiver is attached, your Fishfinder can display
the speed of the boat, and can keep a Triplog of
nautical or statute miles traveled.
Second Sonar Return - when the sonar signal
bounces between the bottom and the surface of
the water and back again. Use the appearance
of the second return to determine bottom
hardness. Hard bottoms will show a strong
second return, while soft bottoms will show a
very weak one or none at all.
Cursor Dialog Box - indicates cursor
the Latitude and Longitude of the cursor
A waypoint can be marked at the cursor
Bait Ball
Hard Bottom
Rocky Bottom
Distance - distance traveled with Temp/Speed
Accessory or GPS Receiver.
NOTE: Entries in this view that list (with Temp/Speed or GPS Receiver) are available if either device is
will be displayed on the view.
Temperature - water surface temperature.
Average Speed - average speed reading with
Temp/Speed Accessory or GPS Receiver.
Cursor - available in Freeze Frame and can
provide depth of a sonar return and bottom