118
442704/A
About the receiver filter sequence in the ST90 system
The filters in the ST90 system are implemented in “series”. Any changes to a filter setting
may therefore have an effect on subsequent filters.
A
Bottom Filter
B
Noise Filter (1)
C
Gain & TVG (Time Variable Gain)
D
Noise Filter (2)
E
AGC (Automatic Gain Control)
F
RCG (Reverberation Controlled Gain)
G
Display Gain
H
Ping-Ping Filter
Note that
Gain
,
TVG
(Time Varied Gain) and
Display Gain
are not filters, but included
only to illustrate the complete "signal path".
Related topics
Operating procedures, page 79
Improving the recognition of fish and schools using receiver filters, page 117
Reducing noise and reverberation with the AGC (Automatic Gain Control) function, page 119
Reducing propeller noise and interference with the Noise Filter, page 120
Reducing bottom and surface reverberation with the RCG (Reverberation Controlled Gain)
function, page 121
Reducing noise and false echoes with the Ping-Ping Filter, page 123
Reducing the strong bottom echo to see fish close to the seabed, page 124
Adjusting the intensity of the echo presentations, page 125
Simrad ST90 Reference Manual
Summary of Contents for Simrad ST90
Page 1: ...kongsberg com simrad Simrad ST90 REFERENCE MANUAL ...
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Page 337: ...442704 A 335 Related topics Sonar views page 326 User interface ...
Page 413: ...442704 A 411 Related topics Menu system page 375 Display menu page 384 Menu system ...
Page 631: ...442704 A 629 Related topics Concept descriptions page 626 Concept descriptions ...
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Page 688: ... 2021 Kongsberg Maritime ISBN 978 82 8066 211 8 ...
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Page 690: ...Reference Manual Simrad ST90 ...