Hi all, I suppose introductions are in order, I’m Rodondo, first year Naval Architecture student from Southern Australia. Have been wreck hunting for many years, mainly using free-diving, naval charts and dumb luck. However, moving to one of the countries coldest areas, free-diving is out of the question and past a depth it gets dangerous. I’ve been eyeing off SS sonars for a while but lack of funds have prevented me from getting one. Finally this year I looked into how to make one myself, mind you with about as much electrical knowledge as Year-12 Physics permits, so all I know at the moment is that I’m probably need some Piezoelectric drivers and a display. The body of the tow-fish body will be no problem as I have a furniture factory at my disposal. I’m aiming for a beam that has a width of 200-400m and work in at least 40 meters .