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FUNCTION SETTINGS
2. TVG CURVE
TVG (Time Variable Gain) offsets the effects of propagation loss of sound as it passes through
the water. To counter this loss, the TVG curve is adjusted by correctly set.
Use the Cursor Shift key ( or ) to select “TVG CURVE”.
Use the Cursor Shift key ( or ) to change the setting.
TVG CURVE 30LOG Use the Cursor Shift key ( or ) to change.
[OFF, 10LOG, 20LOG, 30LOG, 40LOG]
TVG CURVE
10LOG: 1 in the below drawing
20LOG: 2 in the below drawing
30LOG: 3 in the below drawing
40LOG: 4 in the below drawing
NEAR DISTANCE FAR
NOTE!
Caution should be taken to select the TVG curve of which TVG setting is related to the
Gain Knob functions.
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