Humminbird ] 981 Installation & Operation Manual

40, 34 VIEWS AND READOUTS All views have an Information Bar on the left side of the screen, consisting of readouts that are stacked vertically, and that change from view to view. You can customize the information displayed in individual readouts on many views, including suppressing a particular readou…

82, Humminbird ] 981 76 USER MODE User Mode sets the menu system to either Normal or Advanced. When set to Normal, only the basic menu options are shown. When set to Advanced (default setting), additional menu choices are available. T o change the User Mode setting: 1. Highlight User Mode on the Setup menu. 2. Us…

37, KEY FUNCTIONS Your 900 Series™ user interface consists of a set of easy-to-use keys that work with various on-screen views and menus to give you flexibility and control over your fishing experience. Regardless of model, your control head will have the following common keys: • PO…

90, 84 FINDING THE CAUSE OF NOISE Electrical noise usually affects the display with many black dots at high speeds, and high sensitivity readings. One or more of the following sources can cause noise or interference: Possible Source of Noise Isolation Other electronic devices The boat’s eng…

71, TEMPERATURE GRAPH (Sonar View only, with Temperature input) Temperature Graph allows you to display or suppress a water temperature graph over the main Sonar View to show temperature changes correlated to recent sonar history. T o change the display of the Temperature Graph: 1. In the…

43, SIDE/SONAR COMBO VIEW Side/Sonar Combo View shows regular sonar information and side imaging sonar information in a combination split screen. You can perform any of the functions for either of these views, but only when the view you want to control is selected as the active side (see Sonar X-Pres…