Main menu

The Main menu is located at the top of the menu structure. It offers the most common functions for efficient use of the ST90 system. Unless you hide the entire menu system, the Main menu is visible at all times, even if you close the secondary menus.

How to open

By default, the Main menu is open. It is placed on the right side of the display presentation.

Description

Only brief descriptions are provided.

For detailed information about each function, page or dialog box, refer to the Functions and dialog boxes chapter in this publication.

Tip:

If you do not need to use the menu system, you can hide it. This allows more space for the echo presentation.

Use the Menu on the top bar to hide or show the menu.

When the menu system is hidden, it appears temporarily on the left or right-hand side of the screen if you move the cursor to that position.

The icons for opening (and closing) the secondary menus are located under the Main menu. Select an icon to open the relevant menu. Select it one more time to close the menu.

Several of the functions offer Apply to All. If you select Apply to All your setting is applied to all the views in the current presentation mode.

Functions and dialog boxes

User Settings: The User Settings dialog box allows you to save the current user settings (your current selection of operational parameters), and to retrieve factory or previously saved user settings.
Range: The Range function allows you to specify the maximum distance from the transducer to the outer edge of the sonar beam. The range value shown and selected is by default only applied to the currently selected view.
Note:
Even though you can choose a high range value, that does not mean that you can detect your targets in the same range.The range value only defines the range shown in the views.Actual target detection will always depend on the operating environment, such as water temperature, salinity, interference and layers in the water column.
Gain: The purpose of the Gain function is to adjust the echo level in the display presentations. By adjusting the gain you can control how much amplification the ST90 system applies to the received echoes. The setting is by default only applied to the active view. It is identified with a thick border.
Tilt: The Tilt function allows you to control the vertical angle of the sonar beams.
Bearing: The Horizontal view presents the 360 degrees area around your vessel from a bird’s eye view. For the other views you must define the horizontal direction of the beam. Use Bearing to adjust the horizontal angle referenced to the vessel heading. You can also select the bearing line and drag it sideways.