Adjusting The Echo Sensitivity - Simrad SX90 Quick Start Manual

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Select

Range

Make the necessary adjustment.

Select [+] or [-] to choose the requested setting.

or:

Place the cursor on the button. Press and hold the left mouse button. Move the cursor

horizontally over the button. Release the mouse button when requested value is shown.

or:

Select the middle of the button to open it. If you have a keyboard connected to the

SX90, you can type the requested value.

or:

Select the middle of the button to open it. Select a value from the options provided.

Open the button and select

views in the current presentation mode.

Adjusting the echo sensitivity

Some echoes are weak while others are stronger. To compensate for this it is often necessary

to adjust the sensitivity of the SX90. This adjustment is commonly referred to as gain.

Context

You can compare this gain setting with the volume control on your car radio. When the gain

is increased, the echoes will appear stronger. Weak echoes will be easier to see. However,

since you also increase the acoustic noise in the reception, the SX90 presentations will also

show this noise. Too much gain may therefore "distort" the presentation.

Comparing the gain function with the volume control on your car radio is not very accurate.

In fact, the gain in the SX90 is constant. The

This done by controlling the minimum level of detection. When you increase the gain level

(more positive number) , you reduce the minimum level, and thus increase the sensitivity.

386619/C

if you wish to use the chosen setting in all the

Apply to all

function is used to adjust the sensitivity.

Gain

Getting started

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