Garmin 90/140 Owner's Manual

Also see for Fishfinder 140: Install guide Owner's manual Owner's manual Declaration of conformity Manual

Garmin 90/140 Owner's Manual Manual pdf 21 page image

Fishfinder 90/140 Owner’s Manual 15OPERATING YOUR FISHFINDER > U SING THE MAIN MENU3. To select a setting, use the Arrow keys to move theselection arrow, and press ENTER. (When you reachthe end of a menu, the selection arrow wraps to thebeginning.) Press and hold an Arrow key to rapidlyadvance the selection speed.4. To close a setting or a menu, press MENU.Using the Main MenuFrom the Main menu, you can change the Range, Gain,Scroll, Zoom, and View settings.• To view the current menu settings, press MENU.• To exit any window, press MENU.• To quickly change a setting for the current optionthat appears in the upper-left corner of the screen (forexample, the Range option in the above screen), pressan Arrow key.Options and SettingsThe following settings reset to the system defaults each timeyou turn on the Fishfinder.Range—sets the maximum depth that you want theFishfinder to display. Auto (default) automatically tracksthe bottom, or you can set the range, 5–600 feet.Gain—controls the sensitivity of the Fishfinder’s sonarreceiver. Auto (default) automatically sets the sonarsensitivity, or you can set the gain. To see more detail on thescreen, increase the receiver sensitivity by selecting a highergain. If there is too much detail or if the screen is cluttered,lower the sensitivity (lower the gain) to increase the clarityof the screen.