I have a 19.5 ft Alluminum deep V, recently bought a new 1197 unit and went through all the instructions and even drilled holes way off int eright hand corner to get it away from the motor, anyways, I have the transducer set about flush with the hull which does have rivets all along it BTW. All is great until I get up to speeds above 25 MPH and the screen on the fish finder part gets all washed out.
I raised the unit and lowered the unit about 1/3" each way from original setting using same holes, just adjusted all the way up, then all the way down with no difference in end results, so, the majic question is since I already have over a dozen prior fish finder transducer holes in the hull, where should i put the nesst set?? should i go UP an inch or should I go down which i really hate to do since Im all over on the Ohio River and we are constantly smashing over logs and such ona daily basis so lowering is NOT preferred,
Any experience with this would be great...Thanks ahead of time!
Salmonidl