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12
Using the Adjustment Menu
The Adjustment Menu allows direct access to the settings and features most commonly used on the
Sonar Page. There are 10 main adjustment options available: Range, Zoom, View, Gain, Target Level,
Whiteline, Frequency, Depth Line, Noise Reject, and Scroll. All adjustments may be made by using the
ARROW keys and ENTER key. The currently selected option will appear in the upper left of the display
with an up and down arrow on each side of the name.
To change an Adjustment Menu setting:
1. Press ADJ/MENU to display a list of all options and their current settings. The adjustment window
automatically disappears when idle for 20 seconds or you may press ADJ/MENU to exit.
2. Press the UP or DOWN ARROW keys to highlight the desired option and press ENTER to display the
Adjustment window.
3. Press the UP or DOWN ARROW keys to move the setting bar (or pointer) to the desired percentage (Off,
1-100%), setting or range. When changing most adjustments, an open space is displayed on the scale
to indicate the ‘Normal’ or default setting. Once set to ‘Normal’, the setting bar is replaced by the word
‘Normal’.
4. Press ENTER to accept the new setting and return to the Sonar Page.
The current adjustment option is displayed in the upper left corner of the screen. For fast adjustment
from the Sonar Page, press the LEFT or RIGHT ARROW keys to scroll through the options, then press the
UP or DOWN ARROW keys to immediately change the current option or press the ENTER key to review
the current setting before making changes.
Adjustment Options
The Adjustment Menu allows direct access to the settings and features most commonly used. These
available adjustments are:
• Range — sets the display depth range used for viewing. The unit can be set to automatically track the
bottom or set to a user-specifi ed depth range (see “Custom Range” pg. 16).
• Zoom — used to quickly select a display zoom scale or to split the display. When a scale other than
‘No Zoom’ is selected, the ‘View’ or ‘Span’ options are activated in the Adjustment Menu.
Adjustment Menu options
Adjustment
window
Current option
Pointer
Current
adjustment
setting
‘Normal’
setting
area
Unit Operation
Adjustment Menu Options
250C Manual.indd 12 1/27/2004, 3:55:05 PM