Furuno FCV-1200LM - Manual (Page 26)

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4
Clutter setting window
7. Rotate the [FUNCTION] switch fully counterclockwise to select EXIT.
Note: To use the user clutter setting menu setting is reflected on this function, select CUSTOM
at step 3.
1.11 Adjusting TVG
The TVG compensates for propagation loss of sound, so that the echoes from the same size
fish schools are displayed in the same color. Avoid excessive TVG; weak echoes may not be
displayed. The TVG is also useful for reducing surface noise.
0 ft
100
0 ft
100
How TVG works
1. Rotate the [FUNCTION] switch to select TVG.
The TVG menu appears.
Adjust TVG effective
distance.
[-/+]: Change setting
[EXIT (knob)]: Exit
low
TVG
This scale is
synchronized with the
distance value setting.
HF·TVG LEV : 5 (0~10)
HF·TVG DIST : 600ft
LF·TVG LEV : 5 (0~10)
LF·TVG DIST : 600ft
0ft
600
ft
Gain high
TVG menu