Raymarine Marine GPS System - Manual (Page 136)

Advanced Navigator Functions
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Using the White Line
The White Line feature separates echoes from fish near the bottom and
the bottom itself. When White Line is switched on, the Fishfinder
displays echoes differently. The strongest echoes display in the back-
ground color with a thin line on top. All other echoes remain unchanged.
To switch the white line feature on and off:
1. On the Pathfinder Panel, click MULTI , the White Line
button is displayed.
2. Click White Line button to toggle the white line On/Off.
Using Zoom
Zoom enlarges all or part of the scrolling bottom display. You can
select automatic zoom so the Fishfinder selects a zoom level that
keeps the bottom in the lower half of the display window.
Alternatively, you can manually pick the area to zoom.
To use zoom:
1. From the top-level Functionbar menu, click Zoom .
2. If necessary, click Zoom: On/Off to toggle zoom on.
3. Click Zoom: Full/Split to toggle between a full
window zoom image or split windows.
If you select split windows, the display is split
vertically, with the zoom image in the left-hand
window and the scrolling bottom display in the right-
hand window. In a split window display, a vertical bar
appears (along the right hand edge of the scrolling
bottom image) that references the range being
displayed in the zoom window. This bar varies in
height with the selected zoom level.
4. If necessary, click Zoom: Man/Auto to toggle the
setting between manual and automatic. The manual
setting allows you to reposition the zoomed image.
5. For zoom level selection, click the ZoomX to select
from 2x , 4x , or 6x zooms levels.
6. Click ENTER , CLEAR , or BACK to return to the top-
level Functionbar menu.