Chart Speed; Bottom View; Zoom Level (Sonar Zoom View Only) - Humminbird 561 Operation Manual

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.
Bottom View selects the method used to represent bottom and structure on the
display. See What's on the Sonar Display: Bottom Presentation for more
information.
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.
Sonar X-Press™ Menu

Chart Speed

Settings: 1-9, Ultra, where 1 = Slow, 9 = Fast, Ultra =
Fastest; Default = 5

Bottom View

Settings: Inverse, Structure ID, WhiteLine, Bottom Black;
Default = Inverse
Zoom Level
(Sonar Zoom View only)
Settings: 2x, 4x, 6x, 8x; Default = 2x
41