Kongsberg Simrad SN90 Reference Manual page 488

Simrad SN90 Reference Manual
A Bottom Filter
Noise Filter (1)
B
Gain & TVG (Time Variable Gain)
C
Noise Filter (2)
D
AGC (Automatic Gain Control)
E
RCG (Reverberation Controlled Gain)
F
Display Gain
G
Ping-Ping Filter
H
Note that ,
Gain TVG
only to illustrate the complete "signal path".
Details
Off
Choose this setting to switch the filter off.
Weak
The system starts using one amplifier stage and increases the number as a function
of range.
Medium
The system starts using two amplifier stages and increases the number as a function
of range.
Strong
The system starts using three amplifier stages and increases the number as a
function of range.
Related topics
Improving the recognition of fish and schools using receiver filters, page 118
Functions and dialog boxes, page 416
Active menu: functions and dialog boxes, page 463
486
(Time Varied Gain) and are not filters, but included
Display Gain
381294/E