Humminbird 587ci, 597ci Lower Range, Auto:, To adjust the Lower Range:, [International Models only], Lower Range sets the deepest depth range that

Lower RangeLower Range sets the deepest depth range thatwill be displayed by the unit. Auto is the default setting.

Auto: The Lower Range w ill be adjusted b y th e u nit t o fo llow the bottom automatically. Auto is the default setting.

Manual: You can adjust the Lower Range to lock the unit on a particular depth. “M” will be displayed in the lower right corner of the screen to indicate the unit is in Ma nual mode. Adjus t the Upper an d Lo wer Ra nge to gether to view a specific depth range, especially when looking for fish or bottom structure.

For example, if you are fishing in 60 feet of water but are only int erested in the first 30 feet (su rface t o a depth of 30 feet), you s hould set the Lower Depth Range limit to 30. The display will show the 0 to 30 foot range, wh ich allows y ou t o see a mor e detailed view than you would see if the display went all the way to the bottom.

NOTE: A minimum distance of 10 feet will be maintained between the Upper an d Lower Range regardless of the manual settings entered.

To adjust the Lower Range:1.Highlight Lower Range on the Sonar X-Press™ Menu.

2.Press the RIGHT or LEFT Cursor keys to increase or decrease the Lower Range setting. (AUTO, 10 to 1000 feet, 3 to 3 30 meters [International Models only], Default = AUTO)

Sonar X-Press™ Menu 60