Simrad SX90 - DATASHEET FOR NAVAL AND COAST GUARD REV A, Quick Start Manual

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Adjusting the radius of the search area
Some echoes are close, others are further away. It is often necessary to adjust the radius of
the search area. On the SX90, this is referred to as
range .
Context
The
Range
setting defines how "far" you wish the SX90 to detect echoes. In other words, you
specify the horizontal or vertical distance from the vessel to the outer edge of the search area.
Note
The range value selected and shown is by default only used by the active view.
Even though you can choose a large range value, that does not mean that you can detect
your targets on the same range. The range value only defines the range that is shown in the
views. Actual target detection will always depend on the operational environment, such as
water temperature, salinity, interference and layers in the water column.
The selected range is divided into identical distances. These are shown as dotted circles.
They are referred to as
range rings .
Tip
An adjustable range ring can be added to the Horizontal and Vertical views. This ring
is referred to as the variable range ring.
Procedure
1 Click in the view you want to activate.
The active view is identified with a thicker border. Unless you use the
Apply to all
function, all changes you make will only be applied to this view.
2 Turn the relevant rotary switch to make the adjustment.
Tip
The Operating Panel is fitted with three rotary switches. The switches are identified
with numbers. Each switch can be assigned a function related to range, gain or
bearing. Investigate the functionality provided on the
Operating Panel
page. This page
is located in the
Installation
dialog box.
Optionally:
3 Observe the
Main
menu.
Its default location is on the right side of the SX90 presentation.
Simrad SX90 Quick Start Guide