Garmin Fishfinder 250 Owner's Manual

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Garmin Fishfinder 250 Owner's Manual Manual pdf 24 page image

16Main MenuThe Main Menu contains the unit settings that usually do not require frequent change. The Main Menuis divided into eight tabs: Graph, Tools, Temp, Alarms, System, Units, Sonar and Time. Each tab is describedin more detail in this section.To enter the Main Menu, press and hold the ADJ/MENU key. The first time you enter the Main Menu,the ‘Graph’ tab is highlighted in black. Press the UP or DOWN ARROW keys to highlight different tab selec-tions. Press the RIGHT ARROW key to access the selection fields. Each time the Main Menu is accessed, theunit returns to the last edited selection field. Press the LEFT ARROW key to get back to the tabs.To change a setting on a Main Menu tab:1. Using the ARROW keys, highlight the desired field and press ENTER.2. Highlight the desired setting and press ENTER.3. Press ADJ/MENU to return to the Sonar display or to cancel data entry.Graph TabThe Graph Tab allows you to determine the appearance of the scrolling graph display and contains theunit settings that usually do not require frequent change.The following settings are available:• Fish Symbols — allows you to determine how the graph shows underwater targets and back-ground information. If Fish Symbols are set to ‘Off’, the unit displays all of the available informa-tion about the underwater environment. If a fish symbol is selected, the graph displays only theinformation related to that symbol. Actual fish returns may not always appear as perfect arches (likein simulator mode), due to the speed, fish orientation and/or other conditions.• Scale — controls the presentation of the depth ‘Scale’ displayed vertically along the right side of thegraph. The depth ‘Scale’ can be configured to display four different ways: ‘Overlay’, ‘Corners’, ‘Basic’or ‘No Scale’.• Custom Range — allows you to specify a custom viewing range/scale. Once enabled, this range isdisplayed as ‘Custom’ in the ‘Range’ adjustment control. The left value is the top of the scale and theright value is the bottom of the scale.Unit OperationMain Menu OptionsMain Menu - Graph TabFish Symbols Off— All available information isdisplayed.Suspended targets are displayed as fish symbols.Background information is displayed.Same as above with the target depth attached.Suspended targets are displayed as fish symbols. Nobackground information is displayed.Same as above with target depth attached.