Shouldn't, the ducer that comes with it should work. First version of side imaging. Deeper the water further out to the side you can see. Not very effective in shallow water but should be a good depth finder. I'd try it and see how you like it. Fish under boat solid, fish out to side should be hollow with a left or right arrow to show you which side of bot they are on. Think there was another ducer you could buy that was more of a side shot but not a lot more info than your getting now.
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Charlie Weaver USN/ENC 1965-1979