"Wake on left cut!"

[iron_wolf_studio]

Originally Posted by Frin63

Can anyone tell me what this (see title) means and what to do with this info???

It's about the fact that when you have an echo sonar, there's its left cut and right cut. 'Wake' is, colloquially speaking, the turbulence noise caused by the propeller movement. So if the sonar operator says "wake on left cut," it's like saying "propeller noise to the left of the echo," so you roughly know which way the target is moving relative to the water masses.