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post #1 of 6 Old 05-26-2011 Thread Starter
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Depthfinder transducer

hi!,i have an old dephfinder that i've become quite fond of,this spring it stopped working i'm almost sure the problem is with the tranduser,i happen to have a new transduser of an unknown brand or model but is of the exact size and appearence as the old one only with a slightly different plugin plug,i'm thinking of splicing the old plugin onto the new transduser[i don't suppose i have anything to lose] but i was wondering what are the chances that its compatable,any thoughts by anyone? btw this is a old backup dephfinder that i like better than my primary
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post #2 of 6 Old 05-26-2011
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Originally Posted by sawingknots View Post
hi!,i have an old dephfinder that i've become quite fond of,this spring it stopped working i'm almost sure the problem is with the tranduser,i happen to have a new transduser of an unknown brand or model but is of the exact size and appearence as the old one only with a slightly different plugin plug,i'm thinking of splicing the old plugin onto the new transduser[i don't suppose i have anything to lose] but i was wondering what are the chances that its compatable,any thoughts by anyone? btw this is a old backup dephfinder that i like better than my primary
I believe that Airmar makes most of the transducers out there. You may be able to send them the specifics of your wires / plugs and get an authoritative answer. I would put the chances at slim if the plugs are different. Sure would be nice if there could be a simple standard for wind, depth, and speed transducer wiring.

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post #3 of 6 Old 05-26-2011 Thread Starter
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yeah i know my spelling is terrible,the finder is on my boat some distance away and i can quite remember the brand and the new tranducer has absolutely no idenifying numbers or marks,the plugin is very simular but not exact
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post #4 of 6 Old 05-26-2011
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I'm no expert, but did recently replace my transducer with a new in-hull one.

What I learnt was that transducers may look the same, but they operate at different frequencies (and I think different power levels). You need to discover the frequency your depthfinder uses, and match it.

As cghubbell said, pretty well all transducers are made by Airmar, and either sold directly or rebadged by the 'finder manufacturer. if you know the name and model of the 'finder, give Airmar a call. They may be able to advise. And/or try and research it on the web - it's amazing how many 20 or 30-year old manuals can sometimes be found!
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post #5 of 6 Old 05-26-2011 Thread Starter
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i kindof suspected that,but as the finder is very old and i already have the new transducer,i doubt i really have anything to lose by just trying,thanks guys lol even a blind hog will sometimes find a few acorns

Last edited by sawingknots; 05-26-2011 at 03:18 PM. Reason: add
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post #6 of 6 Old 05-26-2011
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Just remember to keep the head of the new transducer in the water (I dangled it over the side of the boat for testing). Apparently if a transducer is exposed to air when turned on, that can kill it. Urban myth? Dunno, but I wouldn't risk it!
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