Thanks. I have the transducer on the port side and have checked the frequencies so that part should not be an issue. My angle of the transducer is just a guess. I will check the angle closer to see if it meets the 3 degree angle. Thanks for the suggestion. I have it in the shop now so I will adjust the angle and see how it works. Thanks for the suggestion. Our water can be pretty dirty on the sound so I am sure that is somewhat of a factor, but when I first got it and had it installed on another boat it worked most of the time.