Standard Horizon Depth Sounder replacement - SailNet Community

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  #1  
Old 06-14-2006
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Question Standard Horizon Depth Sounder replacement

11 years ago, I installed a Standard Horizon DS41 Depth Sounder and transducer on my old wooden boat. It's a through the hull transducer and a small 2.5" gauge in the cockpit. Since we're a simple boat, built in 1936, we don't want a lot of fancy electronics, and this did just fine for about 9 years. Then it started having trouble reading depth. Now it doesn't work at all. I'd like to replace it with the same thing but the model DS41 has been discontinued. I hope the problem is not with the transducer as it's a through hull mount and would be a royal pain to replace.

For now, I'll like to try a new gauge and see if it the transducer works. My questions is - can I use the same transducer with other brands of gauges? I see Uniden has a gauge that looks very much the same as the old Horizon, and says it uses a 200 MHZ transducer. Anyone know if it will work, or any better solution?
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I would call Standard Horizon and see if you can find out what the specifications of your old unit was. They also may have a new head unit that is compatible with it. Can't hurt to ask.
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Old 06-14-2006
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speed transducer check

Mytilene,

Use a voltmeter (digital or analog) to read the voltage output from the transducer while under sail, or power (paddle-wheel spinning). If you see readings that vary within the range of ~1V to ~6V, the transducer is probably operating. The problem will then be in either the wire connecting the transducer to the display unit, or the the display unit itself.

Wayne

Last edited by wwilson; 06-15-2006 at 10:40 AM.
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Standard Horizon was not helpful

Yes, I called them. But they don't make any gauges anymore so they just said I could use the any gauge that was 200 Htz. Anyone know of some other guage that will work?

Thanks for the info on how to test the transducer, I will do that.
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Old 06-15-2006
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my error - sorry

Mytilene,

My earlier response was in error - sorry. You said depth - I somehow got speed in my head and responded with voltage reading for that type of transducer.

I have a friend that is a marine electronics installer. I'll ask him if the Raymarine ST60+ series might interface to the SH transducer and post his response when he gets back to me.

In the meantime, do a continuity check on the wires. That is simple and free and may result in a happily inexpensive fix. The data wires are very small gauge - easily broken, or subject to corrosion over time and so much resistance that it can become virtually the same as a break.

Wayne
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200 MHz is a very common depth transducer frequency, so you're probably in luck.
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Old 06-19-2006
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Raymarine ST60 or 60+ will work

Mytilene,

My installer friend was unsure about the electrical interface so I went to Raymarine and asked. Their reply follows...

The ST60 does have a 200KHZ output, in theory if you have a depth transducer that rings at 200KHZ it will work.

You may be able to borrow an ST60 to test prior to purchase. If looking to save some money I would try to get an ST60 on E-Bay. The new ST60+ are virtually the same electronics - updated case.

Good luck with the project.

Wayne
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