B&G Zeus3 Glass Helm, Operator'S Manual

Page: 86 / 140

Color and gain settings
You can also adjust the image settings from the Echosounder menu.
Gain
The gain controls the sensitivity of the Echosounder.
The more you increase the gain, the more details are shown on the image. However, a higher
gain setting may introduce more background clutter on the image. If the gain is set too low,
weak echoes might not be displayed.
Auto gain
The Auto gain option keeps the sensitivity at a level that works well under most conditions.
With the gain in auto mode, you can set a positive or negative offset that gets applied to the
auto gain.
Color
Strong and weak echo signals have different colors to indicate the different signal strengths.
The colors used depend on which palette you select.
The more you increase the Color setting, the more echoes is displayed in the color at the
strong return end of the scale.
Structure options
When a StructureScan source is connected to your system, you can overlay a DownScan
image on the regular echo image.
Provides options for specifying the DownScan image. This menu option is available when
Overlay downscan
is selected in Echo settings dialog. For more information see
"settings"
on
page 90.
Source
Select to specify the source for the image in the selected panel.
You can display two different sources simultaneously, using a split panel configuration. Menu
controls for each panel are independent.
The source can be the internal Echosounder, another MFD on the Ethernet network, or a
Echosounder module. To define sources, refer to the separate Zeus³ Installation manual.
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Note:
Using two transducers at the same frequency ranges can cause interference
between the two, and they can show up on the image as vertical lines. To avoid this, set
one transducer at one frequency range (such as Medium CHIRP) and the other
transducer at a different frequency range (such as High CHIRP) using the Frequency
menu option.
Pausing the image
You can pause the image, allowing you to examine it.
This function is useful when you need to position a waypoint exactly on the image, and if
you are using the cursor to measure a distance between 2 elements on the image.
The pause function stops the Echosounder from pinging the transducer. The system is not
collecting Echosounder data when paused in this manner.
Advanced options
The Advanced option is only available when the cursor is not active.
Noise rejection
Signal interference from bilge pumps, engine vibration and air bubbles can clutter the
image.
The noise rejection option filters the signal interference and reduces the on-screen clutter.
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Echosounder | Zeus3 Operator Manual