Thread: Side image distance measurements

We cannot visualize the total displayed SI image as 1 dimensional “plane” under the water ...

This is because the SI image dark water column is more of a geometrical semi-circle (equal to the water depth value) and the bottom detail in the SI image is more of a horizontal plane ...

So it’s important to separate in our minds how we interpret the dark water column in the SI image with how we interpret the bottom detail in the SI image ...

Using this representation of the SI image -

Any targets in the magenta color will be “painted” in the SI image dark water column - simply because those targets are closer to the xducer than the actual water depth value (picture in the mind a geometrical semi-circle)

Any targets farther away from the xducer than the value of the water depth will be painted over the bottom detail in the SI image (picture in the mind 1 horizontal plane) ...

Rickie