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Member
Posts: 11
Location: Brainerd, MN | I just purchased a barely used Humminbird 937c and I need to get a transducer for it. I went to Humminbird's website and checked out their thru hull transducer. I've read here on a couple threads in the past that some guys use the thru hull transducer. Has anyone had problems with them? Do they work well thru the hull of an 1890? Any other pro's of con's of that style of transducer?
Thanks.
Jeff |
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| i've run them on an 1890 and a couple X-190s with very good results. clean, crisp returns at all speeds.
be sure to get a "shoot through the hull" transducer and not a "through hull" transducer. they're veeerrrry different, in that the latter is the kind where you put a hole in the bottom of the boat!
you want the XP 9 20
http://store.humminbird.com/products/313995?product_id=aad5d0add8ec...
or XP 9 20 T (has temp gauge).
http://store.humminbird.com/products/313994?product_id=8ca87a13d95d...
they're very easy to install, and come with the epoxy that you need. just mix it up, squeeze it onto the bottom of the puck, and press the puck into place. i did mine yesterday and it took less than 5 minutes.
just be sure that you get it all the way back in the lowest part of the bilge - if you feel around you'll notice a small sump area right in the center back that's 1/2" lower than the area around it - this is where you want to mount it because it's the thinnest portion of the floor so your signal can read through it cleanly.
i'll try and take a picture of mine tonight if i can get a good angle at it with the camera.
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| here's a pic, you can see the slight drop down into the sump at the far back of the bilge...that's where you want to be with the transducer. if you're up above that lip you won't get a clear signal, if you're in that sump it's crystal clear.
other pics are of the external side imaging transducer.
Edited by lambeau 5/17/2010 9:50 PM
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Member
Posts: 11
Location: Brainerd, MN | Thanks for the pics Mike. I ordered the transducer yesterday so hopefully I'll be able to get it hooked up this weekend.
Jeff |
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| Lambeau,
If I decide to go that route, is that area of the bilge accessed through the floor panel at the back of the cockpit, or the hatch covers in the splash well?
Pete |
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Member
Posts: 11
Location: Brainerd, MN | Pete beat me to the next question.
Easier to set the puck in place through the splashwell access holes or the bilge/aerator access panel? Looks to be a stretch either way and I have short arms. Or is it my girth that gets in the way? hmm
I see the area where it'll be set. Mike, is there a particular spot in that area that works better? Closer to the drain plug or closer to front (livewell side) or does it even matter just as long as it's centered in that lowered area?
Jeff |
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| i've never been particular about where i put the transducer, as long as it's down in that sump. those transducers will only get a good image if they're shooting through single-thickness hull, so that's why they need to go down in there. i'm not real worried about it being exactly on the center line or anything, and the direction the transducer faces isn't important on the XP 9 20, since the sonar shoots down in a cone shape anyways. (there are some other transducers that are directional.)
i use both the access panel in the floor and the hatch covers in the splash well. test place the transducer without epoxy first, trying it from either access point and see what one works best for you. the easiest way to do it would be to remove the rear deck extension as this would make access through the floor panel the easiest. i ended up going through the access hatches in back this time and shining light through the floor panel.
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