Humminbird 981 manual MAX Depth, Water Type, Color BAR

98x_Manual_531376-1_A.qxd 2/23/2005 11:40 AM Page 70

MAX DEPTH

(Advanced)

Max Depth adjusts the maximum depth of operation. The performance of your 900 Series™ can be tuned to the maximum depth you will be fishing in by setting the Max Depth. When a maximum depth is set, your 900 Series™ will not attempt to acquire sonar data below that depth, thus increasing overall performance. When Max Depth is set to Auto, the 900 Series™ will acquire bottom readings as needed (within the capacity of the unit). If the bottom is deeper than the Max Depth setting, the digital depth readout will flash, indicating that the 900 Series™ cannot locate the bottom. The Max Depth menu choice is available when User Mode is set to Advanced (see Setup Menu Tab: User Mode).

To change the Max Depth setting:

1.Make sure you are in Advanced User Mode, then highlight Max Depth on the Sonar main menu.

2.Use the LEFT or RIGHT 4-WAY Cursor Control keys to change the Max Depth setting. (AUTO, 10 to 3000 feet, 3 to 930 meters [International Models Only], Default = AUTO)

WATER TYPE

(Advanced)

Water Type configures your unit for operation in fresh or salt water. The Water Type menu choice is available when User Mode is set to Advanced (see Setup Menu Tab: User Mode).

NOTE: 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. Also, make sure that the Water Type is set accurately, especially in salt water, as this affects the accuracy of deep water depth readings.

To change the Water Type setting:

1.Make sure you are in Advanced User Mode, then highlight Water Type on the Sonar main menu.

2.Use the LEFT or RIGHT 4-WAY Cursor Control keys to change the Water Type setting. (Fresh, Salt, Default = Fresh)

COLOR BAR

Color Bar allows you to display or suppress

the display of the color bar shown in the full screen Sonar View.

To change the display of the Color Bar:

1.Highlight Color Bar on the Sonar Main menu.

2.Use the LEFT or RIGHT 4-WAY Cursor Control keys to change the display of the color bar. (Off, On, Default = On)

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