Thread: Sonar Quiz #25

This idea of "target masking" seems like it would only come into play if the boat were moving from deep to shallow up a steep slope or ledge...(how steep...?? I do not know) ...

This would cause the front edge of the cone to contact a rather reflective surface (the upsloping bottom) before it contacted any "fish type" targets under this point ...

The sonar processor algorithms looks for a certain "repetitive" echo that it can define as "Bottom" ...

Then ...any echos (in that same ping) that are farther away than the "Defined bottom" are disregarded ...



Rickie