Max Depth (Advanced); Water Type (Advanced) - Humminbird 500 Series Operation Manual

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 configures your unit for operation in fresh or salt water. In salt
water, you can also choose the shallow or deep setting.
Water Type 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.
Max Depth
(Advanced)
Settings: AUTO, 10 to 800 ft, 3 to 260 m [International
Models only]; Default = AUTO
Water Type
(Advanced)
Settings: Fresh, Salt (shallow), Salt (deep); Default =
Fresh)
67 Sonar Menu Tab