Fishfinder or depth sounder - Page 2 - SailNet Community
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post #11 of 20 Old 03-16-2008
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mounting transducers

Hello,

If your boat has a solid fiberglass hull, installing the transducer should take about 1 minute. You can use a 'puck' type transducer instead of a through hull. You don't need to epoxy the transducer or mount it in a tube filled with oil. All you need is some toilet bowl wax (about $1.00 from Home Depot, etc.). Press a wad of wax onto the hull where you want to place the transducer, then press the transducer into the wax.

I did this about a year ago. I originally planned on using the wax to find a good location, and then epoxying it in. However, since it has worked great, I have no reason to glue it down.

Good luck,
Barry

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Mt. Sinai, NY

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post #12 of 20 Old 03-16-2008
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Quote:
Originally Posted by sailingdog View Post
The only problem with getting one of the Garmin/Lowrance/Hummingbird combination GPS chartplotter/fish finders is that the wind instruments won't be able to talk to them, and can't estimate true wind speed then. If you don't use electronic wind instruments... you're home free.

I prefer the Garmin units, since some of their models have all of the US coastal water charts pre-loaded and they seem to have the best user interface and software of the different brands.
This is a good point. Why can't Raymarine provide functionality on their chartplotters that would let them display a wind instrument? Seem like it would be easy to do.
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post #13 of 20 Old 03-16-2008
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Some of the companies state in their product description that the in hull transducers work as good if not better than the thu-hull types. Toilet bowl wax sounds good. I had similar results with "shoe goo." Sometimes you have to play around with location due to trapped air in the laminate.

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Hello,

If your boat has a solid fiberglass hull, installing the transducer should take about 1 minute. You can use a 'puck' type transducer instead of a through hull. You don't need to epoxy the transducer or mount it in a tube filled with oil. All you need is some toilet bowl wax (about $1.00 from Home Depot, etc.). Press a wad of wax onto the hull where you want to place the transducer, then press the transducer into the wax.

I did this about a year ago. I originally planned on using the wax to find a good location, and then epoxying it in. However, since it has worked great, I have no reason to glue it down.

Good luck,
Barry
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post #14 of 20 Old 03-16-2008
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Quote:
Originally Posted by BarryL View Post
Hello,

If your boat has a solid fiberglass hull, installing the transducer should take about 1 minute. You can use a 'puck' type transducer instead of a through hull. You don't need to epoxy the transducer or mount it in a tube filled with oil. All you need is some toilet bowl wax (about $1.00 from Home Depot, etc.). Press a wad of wax onto the hull where you want to place the transducer, then press the transducer into the wax.

I did this about a year ago. I originally planned on using the wax to find a good location, and then epoxying it in. However, since it has worked great, I have no reason to glue it down.

Good luck,
Barry
I used a smear of 4200 in front of the keel root, aimed about 8-10 degrees forward. That gives me the view directly beneath my bow, and the depth is "my keel plus six inches for waterline variables"!
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post #15 of 20 Old 03-16-2008
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Polysulfite caulk works very well to attach the puck style transducers for shoot thru hull aplications. It will set-up fairly solidly and doesn't flex like silicone and screw up the reading.

While it is true that these combo units cannot "talk" to your wind instruments, I'm not sure what they would have to say even if they could. The best case senario would be that you could have one display that could toggle thru multiple instruments, but I'm not convinced I would want that anyway. I like the idea of having all the data on screen right in front of me.

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post #16 of 20 Old 05-23-2009
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New Question, Same Line

I have an In Hull Transducer, old but still there. Has anyone rewired one of these to a new fishfinder was planning on buying one but didn't know if it would work.

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post #17 of 20 Old 05-24-2009
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Quote:
Originally Posted by sailingdog View Post
The only problem with getting one of the Garmin/Lowrance/Hummingbird combination GPS chartplotter/fish finders is that the wind instruments won't be able to talk to them, and can't estimate true wind speed then. If you don't use electronic wind instruments... you're home free.
The Raymarine ST60 wind instruments wont display true wind from a gps derived SOG. For expensive up market wind instrument they should be able to do this. Other wind instruments will.
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post #18 of 20 Old 3 Weeks Ago
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Re: Fishfinder or depth sounder

it sounds like the fish finder is a better choice than the depth sounder. Does any one make one that can be permanently mounted on the cockpit bulkhead and is weather proof?
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post #19 of 20 Old 3 Weeks Ago
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Re: Fishfinder or depth sounder

i had an apelco by raymarine until the screen got a sunburn. i need to err wish to replace it with another-- i prefer both gps depth sounder and a fishfinder , each mounted in different places on hull to allow depth info for med type mooring. gps ahead of my keel, fishfinder is under cockpit--ha ha ha helluva practical place for depth--ye can see how deep it wasnot as you wrestle of the shoal..hahahahaha
my gps depth sounder is both or either thru hull or stick to inside of hull mount and the fishfinder has a thru hull fitting already and a transducer, so i seek specific fishfinder compatible with my trandsucer.
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post #20 of 20 Old 3 Weeks Ago
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Re: Fishfinder or depth sounder

Quote:
Originally Posted by ddiesel View Post
it sounds like the fish finder is a better choice than the depth sounder. Does any one make one that can be permanently mounted on the cockpit bulkhead and is weather proof?
This thread is eight years old, so electronics have improved and gotten cheaper since then.

For my small boat I have a Lowrance Hook 4 that came with the Navionics+ chip. It's a fish finder that also shows depth, speed, bottom composition, and works as a chart plotter. It has all the US charts including inland lakes. The display is weatherproof and can be mounted in the cockpit. It was under $400.

The limitation are that the screen is small (about the size of an iPhone) and it has older networking technology (NMEA 0183) so you might have trouble hooking it up with all the other latest and greatest.

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