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3.5 Color erase
Needless dim noise can be eliminated by color erase
Because this function removes unwanted low level echoes off the screen by cutting them off,
it is effective when the image is difficult to see because of interference or when you want to
see only big fish school
<without color erase> <removal of 50% color>
3.6 clutter
Clutter is used to eliminate low level return echoes because of dirt sea water etc. so one can
see clear fish school.
<without elimination of clutter><elimination of 40% clutter>
Setting for color erase
select [color]
select [color erase]
select desired values (0 ~ 50 %)
Setting for clutter
select [color]
select [clutter]
select desired value (0 ~ 80%)
