I move transducer to trolling motor.. And sometines i have the normal crystal clear image and after about 3 minutes it get about 6 bottom readings and depth is double what it actually is... I cann support and was dissapointed when i talked to a guy i could barely understand... He said its the transducer needs adjusting... Well i cant adjust that on trolling motor bracket... And it works fin for 3 minutes.. Then if i take it out water for a few minutes an put it back it works fine for 3 minutes.. Any ideas..