Max Depth

(Advanced)

Settings: Various, see below.

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.

The available Max Depth settings are determined by your Humminbird® model as follows:

•778c HD: Auto to 1500 ft, Auto to 500 m (International Models only); Default = Auto

•778c HD XD: Auto to 3200 ft, Auto to 975 m (International Models only); Default = Auto

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 accuracyof 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

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