I installed a lowrance lss2 structure scan transducer on a 2008 ranger 188. I mounted off the jackplate and dropped it to just below the transom step back. I continue to get a constant, distinct line 1.5 feet left from the center line on the side scan. When looking at the downscan there is a horizontal line at 1.5 feet below the surface line. When I had it higher I thought the signal was bounding off of the other side of the jackplate so I lowered it. Still didn't go away. The 2d transducer is mounted higher so I don't think that's it. Any help or suggestions will be appreciated. Thanks.