Reducing Surface Noise; Adjusting Echo Stretch; Adjusting Tvg - Garmin CS 1522 Owner's Manual

3.3.5

Reducing Surface Noise

You can enable this setting to reduce clutter near the surface. Noise may appear near the
surface when the sea is rough or when your boat passes over a wake. Wider beam widths
can also result in more surface noise.
60�1
N 25°45�563'
W080°10�426'
0�00
f
t
NOTE: Not available in SideVü mode.
Select Surface Noise to toggle the setting on/off.
3.3.6

Adjusting Echo Stretch

You can expand or contract sonar returns (see
NOTE: Not available in ClearVü and SideVü modes.
Select Echo Stretch and make a selection:
• Manual allows you to adjust the stretch manually using the main knob or the control
pad.
• Off turns off the shift.
3.3.7

Adjusting TVG

You can adjust TVG for a more consistent level of gain (see
Select TVG and select a setting.
3.3 Clutter
f
t
007
°
M
0
10
20
30
40
50
60
70
2.4.2 for more information).
80
86
2.4.4 for more information).
Surface noise
47