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Simrad EK15
c
Fish (40 log TVG)
This gain setting provides larger amplification close to the bottom. It has been
designed to provide the best echoes from single fish.
d
Targets (40 log TVG)
Basically, this setting uses the same TVG amplification as
filtering and compensation is implemented. Only echoes detected and interpreted as
single fish are shown. The echoes are compensated for their physical position in the
beam (beam compensation). This means that fish in the outer region of the beam are
adjusted to correct size even though their echoes are weaker.
Note that this
Targets (40 log TVG)
transducers.
e
Target Mix (40 log TVG)
Basically, this setting uses the same TVG amplification as
compensation is implemented. Echoes detected and interpreted as single fish are
adjusted to their correct size according to their physical position in the beam.
Note that this
Target Mix (40 log TVG)
transducers.
f
User (Variable TVG)
This setting allows you to define your own TVG setting.
Related topics
• Adjusting the TVG gain on the Active menu on page 76
• Echogram; Echogram tab on page 210
• TVG gain on page 275
Procedure
1
Click the
Active
This icon is located under the
menu.
Click
2
Echogram
The
dialog box allows you to set up the parameters controlling the
Echogram
echogram presentation. The three tabs control the horizontal lines, the echogram
type with applied TVG, and how fast the echogram moves across the display.
3
On the
Echogram
4
Choose your TVG setting.
Tip
The changes made here will by default only be applied to the currently selected
"active" echogram (identified with a thick border). If you wish to apply the
changes to all the other echograms of the same type (for example all bottom related
echograms), click
68
setting is only functional with split beam
icon.
menu. It is used to open the
Main
to open the
Echogram
tab, observe the various TVG settings that can be applied.
.
Apply To All
Fish
Fish
setting is only functional with split beam
dialog box.
, but additional
, but additional beam
Active
351718/C
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