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 Catalina/Capri 25/250 Sailor's Forums
 General Sailing Forum
 In-Hull sounder transducers, opinions?		  New Topic  Topic Locked
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lcharlot
Master Marine Consultant

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Antigua and Barbuda
1301 Posts
Initially Posted - 10/02/2003 :  01:09:41  Show Profile
I am shopping for a GPS/Sounder for the new boat, will probably get a Garmin 168 or 238. Has anyone used these transducers that don't require drilling a hole in the boat, you just epoxy them to the inside of the hull and they read depth right through the fiberglass somehow? Are they any good? I had a transom mount on the old boat, but that won't work on the new boat because the Balanced rudder tucks under the keel skeg and would hit a transducer mounted there (the old boat didn't have the balanced rudder).

Larry Charlot
Catalina 25WK/TR Mk. IV #5857 "Quiet Time"
Folsom Lake, CA
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Leon Sisson
Master Marine Consultant

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USA
1893 Posts
Response Posted - 10/02/2003 :  03:36:27  Show Profile  Visit Leon Sisson's Homepage
Larry,

I converted one of the bass boat transom mount fishfinder transducers to shoot-thru-hull by building it a housing from a large PVC sewer cleanout fitted and glued to the interior of the hull. I add distilled water about once a year. Works fine. The original advertised depth range of 800' seems to now be about 525' in seawater. That's plenty to keep me off the rocks and shoals. I can still see any fish big enough to eat just fine.

-- Leon Sisson


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Ray Seitz
Captain

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USA
416 Posts
Response Posted - 10/02/2003 :  07:13:01  Show Profile
I have a Standard Horizon ( ST40 ? )with the transducer that matches it. No complaints, except the bond with the hull leaks mineral oil a little. I think I should have used something different ( I used 3m 5200 ) to bond the transducer housing to the hull. There have been a few discusssions about this topic on the 250 forum if you search the archives you should get a lot of info. My GPS is seperate and handheld.

<img src="http://im1.shutterfly.com/procserv/47b3d831b3127cce891ba4a976e00000001010" border=0>On the water
C250 WB Sea Major #628

Edited by - RAY SEITZ on 10/02/2003 07:13:49
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Frank Hopper
Past Commodore

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Pitcairn Island
6776 Posts
Response Posted - 10/02/2003 :  10:04:35  Show Profile  Visit Frank Hopper's Homepage
<BLOCKQUOTE id=quote><font size=1 face="Verdana, Arial, Helvetica" id=quote>quote:<hr height=1 noshade id=quote>
I can still see any fish big enough to eat just fine.
-- Leon Sisson
<hr height=1 noshade id=quote></BLOCKQUOTE id=quote></font id=quote><font face="Verdana, Arial, Helvetica" size=2 id=quote>

I worry about fish big enough to eat me!

<img src="http://members.cox.net/fhopper/Catalina25/sigbow.jpg" border=0>Frank and Martha in Wichita KS. Lake Cheney
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RoofRoof
Navigator

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USA
186 Posts
Response Posted - 10/02/2003 :  10:38:10  Show Profile
Do a search for previous posts on this. I have done it VERY easily and detailed it just in the past week on another thread. Look for RoofRoof.
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jsummerfield
1st Mate

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USA
96 Posts
Response Posted - 10/02/2003 :  21:16:11  Show Profile
I considered the Garmin 168 but installed the Garmin 100 Blue. I plan a portable GPS that I can take flying and hunting. I intend the future GPS to interface my future tiller-pilot.

Shooting through the hull works well. I tested mine forward and aft of the keel. My temporary installation is aft under the quarterberth with the display on a short hatchboard when sailing. I used a plastic container cutout for the transducer and gooped to the floor with silicone. I add water to the container to permit the sound to penetrate any gaps.


John
C25 3973 FK/SR
"Texas Tango"
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bill bosworth
Navigator

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USA
172 Posts
Response Posted - 10/02/2003 :  22:23:40  Show Profile
I'm using a hummingbird, depth sounder, I glued the transducer to the hull with epoxy, in the area provided under the V berth, it works fine.
Bill
C250wb #134 Serendipity
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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.