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.
Even though you can choose a large range value, that does not mean that you can detect your targets on the same range. The
range value only defines the range that is shown in the views. Actual target detection will always depend on the operational
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.