Kongsberg Simrad SN90 Reference Manual page 469

• : Choose Medium to compare the echoes from the latest four pings. For the
Medium
current echo to be shown, it must be present in all of these pings.
• : Select Strong to allow the filter to compare the echoes from the latest eight
Strong
pings. For the current echo to be shown, it must be present in all of these eight pings.
The filters in the SN90 system are implemented in "series".
Bottom Filter
A
B Noise Filter (1)
Gain & TVG (Time Variable Gain)
C
Noise Filter (2)
D
E AGC (Automatic Gain Control)
RCG (Reverberation Controlled Gain)
F
Display Gain
G
Ping-Ping Filter
H
Note that ,
Gain TVG
only to illustrate the complete "signal path".
Details
Ping-Ping Filter
Select the filter setting you want to use
Apply to All
Check this box if you wish to use the chosen setting in all the views in the display
presentation.
Related topics
Choosing operating mode and key transmit parameters, page 87
Functions and dialog boxes, page 416
Active menu: functions and dialog boxes, page 463
381294/E
(Time Varied Gain) and
Functions and dialog boxes
are not filters, but included
Display Gain
467