Humminbird 596C HD DI - Manual (Page 79)

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Max Depth
(Advanced)
Settings: Auto, 10 to 1200 ft, 3 to 400 m [International
Models only]; Default = Auto
Max Depth controls the maximum depth of operation. When Max Depth is set
to Auto, the Fishfinder will acquire bottom readings as needed (within the
capacity of the unit). When Max Depth is set to match your fishing maximum
depth, your Fishfinder will not attempt to acquire sonar data below that depth,
so more detail will be shown on the screen.
NOTE: If the bottom is deeper than the Max Depth setting, the digital depth readout
will flash, indicating that the Fishfinder cannot locate the bottom.
Water Type
(Advanced)
Settings: Fresh, Salt (shallow), Salt (deep); Default = Fresh
Water Type configures your unit for operation in fresh or salt water. In salt
water, you can also choose the shallow or deep setting. The Water Type menu
option is available when User Mode is set to Advanced (see Main Menu: User
Mode).
NOTE: Make sure that the Water Type is set accurately, especially in salt water, as
this affects the accuracy of deep water depth readings. In salt water, what would
be considered a large fish might be 2 to 10 times bigger than a large fish in fresh
water (depending on the type of fish you are seeking). The salt water setting
allows for a greater range in fish size adjustment to account for this difference.
Sonar Menu Tab