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 Catalina/Capri 25/250 Sailor's Forums
 Catalina 25 Specific Forum
 Transducer		  New Topic  Topic Locked
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andbarger
Deckhand

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24 Posts
Initially Posted - 01/31/2014 :  20:54:12  Show Profile
I am a new member of the Catalina 25 and I'm looking for a recomendation. I have a Hawkeye DF100 digital depth sounder and I was wondering where the best place to mount an in hull transducer would be? I was having trouble getting a reading when I was testing it and was unable to find a spot that worked but I would like to try again next season.
Summer Vibe
1984 C25 Tall Rig
Swing Keel & Pop-Top
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hewebb
Admiral

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USA
761 Posts
Response Posted - 02/01/2014 :  05:05:00  Show Profile
Looks like they are to be mounted on the transom. I would try mounting it in wax (from toilet ring) inside the hull facing as near vertical to the water line as possible away from the keel. I helped a friend mount a sensor that way and it worked well. It was not same brand.
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shnool
Former Capri-25 Tech Editor

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USA
1032 Posts
Response Posted - 02/01/2014 :  05:57:29  Show Profile  Visit shnool's Homepage
I had a heck of a time with my Hawkeye on my Capri 25. I couldn't get the IN hull to work to save my life (if I threw the transducer over the rail it worked fine - proving it was working)...

I struggled with it enough, that I finally broke down and got a through-hull and drilled the hole. Drastic measure for sure, but it now ALWAYS works.

I've heard you can use WAX. I've heard you can use a PVC Pipe filled with mineral oil. I've heard it all. I also heard you can use a zip lock (large gallon size freezer), and TEST placement, with water in the bag, and the transducer in the bag. I did JUST this, and could NOT get it to work. The Hawkeye has an "auto-calibrate" to sense density for in-hull placement (translate, you can't adjust the "volume" to penetrate the thickness of the hull, it's supposed to do that for you).

The Hawkeye company was great to deal with, and were VERY willing to sell me a replacement transducer, for cheap. I opted for giving my old one to a friend though who has a J/22 and thinner hull, and I purchased a new one (has dual temp in it as well). The Through-Hull so far has been great.

Here's a shot of it working, with a rather sweet speed on the sumlog...
Edited by - shnool on 02/01/2014 06:01:16
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Notice: The advice given on this site is based upon individual or quoted experience, yours may differ.
The Officers, Staff and members of this site only provide information based upon the concept that anyone utilizing this information does so at their own risk and holds harmless all contributors to this site.