Simrad NSO, Operation Manual

Page: 55 / 116

54 | Using echosounder
speed can cause interference on the screen.
Clarity
Wave action, boat wakes and temperature inversion can cause on-screen clutter near the
surface.
The surface clarity option reduces surface clutter by decreasing the sensitivity of the
receiver near the surface.
Pausing the echosounder
Refer page 5^.
Overlay downscan
When a StructureScan unit is connected to your NSO system, you can overlay DownScan
images on the regular echo image.
When activated, the echosounder menu will expand to include basic StructureScan
options. See “StructureScan™ overlay” described previously.
Recording and viewing the echosounder data
Refer page 5^-_`.
Search depth
Noise may cause the echosounder to search for unrealistic depths.
By adjusting the search depth you can avoid that such conditions interfere normal
echosounder operation.
NMEA2000 Depth
If you do not have a compatible echosounder connected to your NSO, the echo page will
still display a clearly colored depth contour based on depth data received from either a
NMEA0183 or NMEA2000 depth sensor.
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Adjustable depth digits
You can adjust the size of the depth digits to small, medium or large by
changing the setting in Advanced Echo in System, Settings menu. As
standard these digits are set to large.