Humminbird 345c Fish Finder User Manual


 
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Chart Speed
Settings:1-9,Ultra,where1 =Slow,9 =Fast,Ultra= Fastest;
Default = 5
Chart Speed determines the speed at which the sonar information moves
across the display, and consequently the amount of detail shown.
A faster speed shows more information and is preferred by most anglers;
however, the sonar information moves across the display quickly. A slower
speed keeps the information on the display longer, but the bottom and fish
details become compressed and may be difficult to interpret. Regardless of the
Chart Speed setting, the RTS Window™ will update at the maximum rate
possible for the depth conditions.
Zoom Level
(Sonar Zoom View only)
Settings: 2x, 4x, 6x, 8x, Default = 2x
Zoom Level sets the magnification level for the Sonar Zoom View. Use Zoom to
see more detail in the bottom sonar returns that might be displayed close
together, such as those caused by fish suspended close to the bottom or within
structure.
Zoom Level is only available on the X-Press™ Menu from the Sonar Zoom View.
The Zoom Preview Box shows the section of the bottom that will be magnified.
NOTE: The Zoom Preview Box tracks the bottom and cannot be moved.
Bottom Lock
(Sonar Zoom View only)
Settings: Off, On; Default = Off
Bottom Lock changes the mode of the zoomed view in the Sonar Zoom View.
Bottom Lock continuously graphs the bottom at a constant point on the display
regardless of changes in depth. This “flattens“ out the bottom contour but is
effective at showing fish on or near the bottom.
Sonar X-PressMenu