Echo average
An omni sonar term, in plain English.
Smooths the picture by averaging successive pings. Reduces flicker and noise at some cost in fast detail.
See it in action
The free lessons show where this shows up on a real screen: start with the learning path, try it yourself on the omni trainer, or look it up on real CSH-10 captures in the field guide. Owners and captains talk settings every day on the forum.