To customize the size of the Data header, high- light Size and press ENT. There is a choice of Small, Medium, Large.
To customize the data items to be displayed:
1.Highlight Data setup and press ENT. The Data header increases in size to display all twelve data fields. Some data fields may be blank.
2.Use the cursor keys to move from data field to data field.
3.Press ENT at any data field to show the list of data items that can be displayed there.
4.Highlight the required data item and press ENT. The data item is immediately displayed in that data field.
5.Press ESC when finished and the Data header resizes automatically.
5-2 Sonar Zoom display
To show the Sonar Zoom display, press DISP and select Sonar Tab, select Sonar Zoom and press ENT.
Sonar history
Depth line marks the centre of the zoomed area
Zoom bar
Zoom section
Divider line
The split display shows the sonar history on the right side and the zoom section on the left. The zoom bar on the far right shows the area that is magnified in the zoom section. See sec- tion
To change items, press MENU until the Options menu is shown.
Gain
Gain is explained in section
Range
Range is explained in section
Bottom lock
If Bottom lock is selected, the zoom section moves so the bottom is always displayed in the zoom section, regardless of changes in depth.
If Bottom lock is not selected, the bottom will not be displayed in the zoom section when it is outside the range covered by the zoom bar.
Using the Bottom Lock and
Split Ratio
Use this to change the split ratio between the zoom and the sonar history sections dis- played. The default split ratio is 50%.
1.Highlight Split Ratio and press ENT. A left arrow and right arrow appear on either side of the divider line.
2.Use the 
or 
cursor keys to adjust the position of the divider line, then press ENT. The adjustable range of the split ratio is from 20% to 80%.
Data header
Data header is explained in section
FISH 4500/4600 Installation and Operation Manual | NAVMAN | 23 |