Westsail Owners Alliance - Post: "In-hull Depth Finder"
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Post: "In-hull Depth Finder"

12,268 posts on 2,444 threads   •   From Mar 07, 2004 - Jan 08, 2012


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- Archived Message from Inactive Forum -

Jay Bietz


I installed the Navman 3100 kit that includes the masthead sensors and digital gauge, knot meter, depth sounder.

I tested out the transducer under the stb 1/4 berth after sanding off the paint to bare fiber glass. I tested the location by putting the sensor in a baggie of water then presssed the assembly against the hull. For install, I used regular Silcone to secure it to the hull after other adhesives interefered with the signal.

I have pretty good results -- a few times the depth goes crazy as the boat rocks or? something else happens. I don't know if this is normal behavior or special to Navman or my installation.

Things to avoid: Air pockets in the fiberglass and ashesive that block the signal or have air bubbles.

Others use a water filled tube inside the hull with the transducer inside.

Hope this helps.

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