Lowrance LCX 38hd

Good evening everyone!
I currently have a LCX 38hd that I took off my dads boat in installed it on mine. I am sure nothing has been done to it and it is currently in "stock" mode. Are there any suggestions on how to tune this unit to make it more effective? I mainly fish lakes here in Washington with going out in the sound every once in a while. Any help would be greatly appreciated!
David
I currently have a LCX 38hd that I took off my dads boat in installed it on mine. I am sure nothing has been done to it and it is currently in "stock" mode. Are there any suggestions on how to tune this unit to make it more effective? I mainly fish lakes here in Washington with going out in the sound every once in a while. Any help would be greatly appreciated!
David