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 ME70 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.
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Description
Only brief descriptions are provided. For detailed information about each function and dialog box, follow the relevant link.
Tip
If you do not need to use the menu system, you can hide it. This allows more space for the echo presentation.
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Use 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.
Below the Main menu you find the icons for opening (and closing) the secondary menus. Select an icon to open the relevant menu, and reselect the icon to close the menu.
•  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.
•  Beam Mode
The ME70 collects acoustic data through a number of acoustic beams. The beam properties can be adjusted, and they are collected as beam modes. Each beam mode describes the acoustic properties. You can create and maintain several different beam modes, and use these to set up the ME70 for specific survey activities. The Mode function allows you to activate one of the pre-defined beam modes.
•  Range
The Range function allows you to specify the maximum theoretical vertical depth covered by the ME70. The range is defined from a selected start range, and down to a value beneath the current bottom depth. The value selected and shown is by default only applied to your active echogram.
•  Start Range
The Start Range function allows you to specify the start depth of the echogram. The value defines from which depth in the water column the presentation shall start. The depth value shown and selected is by default only applied to the currently selected echogram.
•  Minimum Level
The purpose of the Minimum Level function is to adjust the echo sensitivity in the ME70 presentations. It controls how weak or strong an echo needs to be to be shown in the echograms. The setting is by default only applied to currently selected echogram. It is identified with a thick border. There are two minimum level buttons, one for each TVG setting (20 log R and 40 log R).