I recently put a Lowrance on my SUV. I'm trying to put the transducer in hull but I'm not sure if i'm getting the right readings or not. I have only tried it in fresh water. The down scan sonar doesn't really show any conclusive pictures. Do you think it is the in hull transducer or is that just river sonar. If you have any pictures of salt water and fresh water displays on your down scan sonar please post. Thanks Any suggestions are appreciated.