What's On The 2D Sonar Display - Humminbird 748 3D Operation Manual

What's on the 2D Sonar Display

The 700 Series™ Fishing System can display a variety of useful information
Depth - Water depth can be set to alarm when
the water becomes too shallow.
Speed - If a Temp/Speed accessory is attached,
the Fishing System can display the speed of the
boat and can keep a Triplog of nautical or statute
miles traveled.
Temperature - Water surface temperature.
Timer - Elapsed time with Temp/Speed
Accessory.
Distance - Distance traveled with Temp/Speed
Accessory.
Average Speed - Average speed reading with
Temp/Speed Accessory.
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 - Displays on the view
when the cursor is active.
NOTE: Entries in this view that list (with Temp/Speed or GPS Receiver) are available if
the information from the GPS receiver will be displayed on the view.
What's on the 2D Sonar Display 8