Koden CVS-702D, Basic Operation Manual

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CVS-702D Chapter 2 Basic operation
0093107022-02 2-63
The far left line is at correction depth 60 m,
and the line at far right is at correction depth
1 m in a graph.
Change in TVG correction by change in depth
(Strength 50/Adjust 1 m)
0 10 20 30 40 50
TVG correction (-dB)
140m
120m
100m
80m
60m
40m
20m
0
20
40
60
80
100
120
140
Depth (m)
Change in TVG correction by change in adjust
(Strength 50/Depth140m)
0
20
40
60
80
100
120
140
0 10 20 30 40 50
TVG correction (-dB)
Depth (m)
60m
50m
40m
30m
20m
10m
1m
The far left line is at correction depth 20
m, and the line at far right is at correction
depth 140 m in a graph.
Adjustment of TVG Adjust (start point)
of manual TVG
[TVG Adjust] adjusts the excessive
correction by TVG against shallow signals,
making the amount of correction at the
point shallower than the start point to be
the same correction amount at the start
point.
Adjustment of TVG Depth of manual
TVG
[TVG Depth] is the reference point of depth
for correction. The deeper the setup
becomes, the wider the correction range
becomes.