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post #1 of 3 Old 05-13-2002 Thread Starter
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Thru Hull Transducer

I recently bought a fish finder/depth sounder for our little Spindrift-19 (Precision-18). The instructions say I can shoot the transducer right through the hull and tells how to mount it. My question is: what are some ways to determine a good location before exopy is mixed? I want to do some kind of temporary mounting to be sure it works well first.
Thanks, Phil s/v Deja Vu
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post #2 of 3 Old 05-17-2002
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Thru Hull Transducer


I recently bought a thru the hull depth sounder for my Searfarer 22. The instructions said to sand the area in preparation for installation. The area should be flat so that the transducer does not rock. Then to test the area out apply vasoline to the cleaned area and press the transduced down into the vasoline twisting it slightly to make sure there are no air bubbles. Turn your depth finder on and make sure it works at the choosen location. If it works OK clean the area good and permanenly install the transducer.

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post #3 of 3 Old 05-21-2002
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Thru Hull Transducer

This is not a thru-hull transducer, then, but a transom mount transducer that you are using as an in hull transducer. A thru hull transducer actually goes thru the hull in a, well, thru hull manner. An in hull transducer has a concentrated area of power to allow to shoot thru the hull on a fiberglass boat. The manufacturer''s instructions are the best to follow, and if you have any questions, it''s best to call them. In a normal installation for an in hull transducer, yes, you slightly sand the area then set the transducer with a regular epoxy. Do not use silicone, it allows for to much movement while underway. Did the salesperson explain to you that you will lose from 5 - 10 percent accuracy in using a transom mount transducer as an in hull transducer?

Best Wishes,
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