Simrad ME70 - REV C, Руководство оператора

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Simrad ME70
Procedure
The following methods can be used.
1
Method 1
:
a Click [ + ] or [ - ] to adjust the range manually.
2
Method 2
:
a
Click the middle of the button to open it.
b Type any range value.
c Click
Apply to all
if you wish to implement your chosen depth chosen depth
value to all the current echograms of the same type. This choice will also apply
to the other methods.
3
Method 3
a Click the middle of the button, hold the mouse button depressed, and drag
sideways.
4
Method 4
a Place the cursor over the middle part of the button, and use the control wheel
on the mouse (or trackball) to choose range value.
Gain procedures
These procedures explain how you can adjust the gain in the ME70. This controls
how “powerful” the echoes are shown in the echo presentations. The ME70 uses two
principles for gain;
signal amplification and time varied gain (TVG) .
Topics
• Adjusting the gain on page 60
• Adjusting the TVG gain (backscatter) on the Active menu on page 62
Adjusting the gain
Purpose
This procedure explains how to change the gain.
Description
The
Gain
function controls the display gain.
The value controlled by the
Gain
button is the same as the
Minimum Level
of the
Colour
Scale
dialog box.
Changing the colour scale with the
Gain
button implies that the
Minimum Level
and
Maximum Level
are shifted with the same value, and the colour step is kept constant.
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