airmar thru hull transducer on pole - SailNet Community

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Old 01-12-2014
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airmar thru hull transducer on pole

I was wondering is it possible to hang a airmar transducer off a pole of the back of the boat even though it is a thru hull. I'm going on a voyage for two weeks and I need a quick fix.
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Old 01-12-2014
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Re: airmar thru hull transducer on pole

I don't think the electronics head on the through-hull versions is meant to be immersed.
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Re: airmar thru hull transducer on pole

Well I looked at the Airmar documentation and really am none the wiser as to whether they can be immersed or not!
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Re: airmar thru hull transducer on pole

Can you fit it in-hull? A combination of toilet sealing wax and some duct tape will probably hold it for long enough.
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Old 01-13-2014
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Re: airmar thru hull transducer on pole

If your hull is solid glass you can silicone in hull.
Have mine in place for years. Just make sure it is reading
and has no air/voids and stays in place until cured.
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Re: airmar thru hull transducer on pole

No
ours was acting up so I tried a fishfinder transducer on a pole overboard. Did not work. You need to get it deep enough to be out of the turbulence from the boat and off the back it will ne significant. Maybe off the bow but I still suspect it will need to be deep, especially if you are in any choppy water. By the time you go thru all the rigging work you could ha e mounted a thru hull transducer for much less money and hassle
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Re: airmar thru hull transducer on pole

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Originally Posted by PaulinVictoria View Post
Can you fit it in-hull? A combination of toilet sealing wax and some duct tape will probably hold it for long enough.
seems like my hull is to thick. My electronics guy says it won't work. Hull to thick I guess. It's a 45 ft coronado.
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Re: airmar thru hull transducer on pole

Get everything ready ahead of time and you can install a new thru-hull transducer hanging in the slings. Much less expensive than a complete haul. Swap your zincs at the same time.
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Re: airmar thru hull transducer on pole

I put an emergency Humming bird type, @$$70-90 on 2x2 wood pole clamped to stern rail. This transducer has wire that is screwed to the wood with the transducer screwed to the bottom of wood & pointing in the correct direction. Has to be in the water a few inches. You can raise or lower as needed. WORKED FINE on sailboat ! You are not going 20.knts
......Main problem is transducer is 45ft back from the front . Mine was 30ft . But, using Chartplotter depts. & going slow in shallow areas was good.
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Re: airmar thru hull transducer on pole

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Originally Posted by sidney777 View Post
I put an emergency Humming bird type, @$$70-90 on 2x2 wood pole clamped to stern rail. This transducer has wire that is screwed to the wood with the transducer screwed to the bottom of wood & pointing in the correct direction. Has to be in the water a few inches. You can raise or lower as needed. WORKED FINE on sailboat ! You are not going 20.knts
......Main problem is transducer is 45ft back from the front . Mine was 30ft . But, using Chartplotter depts. & going slow in shallow areas was good.
I'm gonna give it a try. I'll keep you informed
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