Quote Originally Posted by BobB View Post
I hope I am not too blunt, but that isn't the way it works ...... sonar will not reflect off a deep layer of hard bottom thru a soft bottom. When you get multiple returns, it is usually because you have a hard bottom, not a soft bottom.
Your not being to blunt IMHO. Just trying to learn, I had heard the same thing about shooting thru mud /silt to a hard rock. So sonar doesn't really do that? Just trying to learn and I definitely don't know the answer.