Raymarine RayTech RNS 5.0, Руководство пользователя

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Chapter 8: Using sonar 65
coverage or 200 kHz for a narrow, detailed view), or you can set split frequency
mode to display both frequencies in different pages.
• Change the sonar display mode, for the active page, to view bottom lock, A-scope
or zoom images.
• Bottom lock provides a bottom up view. This mode is used primarily to filter out
the bottom structure and thus show fish more clearly. Bottom lock can be
displayed full page, or split with the scrolling bottom image.
• A-Scope displays a real-time image of the bottom structure and fish directly
below the transducer. The A-scope is displayed alongside the regular scrolling
bottom graph.
• Zoom enlarges all or part of the bottom graph display so that you can see more
detail of the bottom structure, weeds etc. You can select the magnification level
and the zoom area. Zoom can be displayed full page, or split with the scrolling
bottom image.
• Isolate fish close to the bottom using White Line and Bottom Fill in the active pane.
• Hide the depth digit in the current page.
How do I change the range?
The sonar automatically adjusts the display depth range, selecting the shallowest
range that keeps the bottom image in the lower half of the display page. Alternatively
the RANGE button on the Pathfinder panel lets you select the maximum depth
displayed on the scrolling bottom and A-scope images. You can also set the shift value
to move the image up or down within the current range. When auto-range is selected,
the shift adjustment is disabled and the value is ignored.
For full details of range and shift values refer to
page 127
.
To adjust the range:
1.Click RANGE on the Pathfinder panel. This sets the adjustment to
manual and the range softkeys are displayed.
2.Click RANGE to adjust the range as follows:
i.Click
OUT
to select a shallower range.
ii.Click
IN
to select a deeper range.
To adjust the shift value:
1. Click the appropriate softkey:
i. Click
Shift Up
to select a shallower level.
ii. Click Shift down to select a deeper level.
The image is shifted by the selected amount.
RANGE
IN
OUT
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