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post #1 of Old 04-21-2008 Thread Starter
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Through-hull transducer?

At the end of last season it seemed as though my depth-sounder/fish-finder was pooched - strange lines running across the screen.

The thing is over 10 years old so I expect it needs replacing.

It is connected to an in-hull transducer.

I was hoping that I could just connect the new fish-finder / depth-sounder to the existing transducer to prevent having to screw around with holes in the hull.

Upon inspecting my hull I found a second, un-used transducer from a previous set-up.

Anyway I went to a local, well-respected, sporting goods place and asked about hooking up a new fish-finder to the old transducer.

The guy told me that it probably wasn't possible (as I kind of expected). I was looking at some transom-mounted transducers when the guy told me that Lowrance gives instructions for mounting these inside the hull. That the 200 khz models are powerful enough to act as a through-the-hull transducer.

Does anyone have any experience with this?

This would certainly make the placement better as I could mount the transducer at the bow (in front of my waste-water holding tank) instead of under the cockpit where is is now.

Any thoughts would be appreciated.


1989 Hunter 30'
Southern Georgian Bay

Visualize the vastness of the oceans; the infinity of the heavens; the fickleness of the wind; the artistry of the craft and the frailty of the sailor. The oneness that may be achieved through the harmony of these things may lead one to enlightenment. - Flying Welshman
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