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Old 12-05-2008, 05:04 PM   #1
Rear Admiral
Join Date: Feb 2006
Posts: 437

Our Standard Horizon depth sounder has stopped showing a depth reading.

I installed the new display a few years ago and have replaced the transducer since then.

Standard Horizon has dropped their line of instruments and provide ZERO CUSTOMER SUPPORT.

Is there a way to determine positively if my problem is in the display or transducer?

At one time I could hear the sounder "pinging" with a transistor radio but I can no longer hear the clicking sound.


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Old 12-05-2008, 11:08 PM   #2
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Join Date: Jun 2007
Home Port: Washington DC
Vessel Name: SV Mahdee
Posts: 3,236

Do you have a multi-display like the Cruzpro that you could hook it up to rather than its own display? Or, even a NMEA 0183 multiplex to get it to your computer? That would let you isolate the display...

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Old 12-06-2008, 02:38 AM   #3
Join Date: Apr 2007
Posts: 129

The clicking sound as the transducer fires away a signal is easily heard on SSB radios. The only way to test the units is to find a working display and swap it with yours to see if the transducer is firing correctly. The signal originates at the display unit and is sent to the transducer for sending and receiving.

If you have a permanently mounted thru-hull transducer then Murphy's Law is going to mean the transducer is bad as you have to haul the boat to change it.

An option I did instead of spending mega-bucks to haul the boat early was to purchase the cheapest little speedboat depthsounder with the transom mount "brick". This unit is a little 2.5 or 3" round display that shows only numerals for the depth. I then went to a plumbing store and purchased a 6 or 8 inch plastic PVC pipe cleanout adaptor. I ground an area of the fiberglass hull inside a bilge area free of paint and epoxied the cleanout adaptor to the hull. I then cut the cover plug to allow the cable from the transducer to pass through. You cannot cut or shorten any of the transducer cables as they are "tuned" to a specific length. then I put the little puck transducer into the PVC adaptor and filled all around it with mineral oil (a.k.a, baby oil), and then screwed the cover/cap down to hold the transducer against the hull. And now I have a wonderful working depthsounder with no holes having to be cut through the hull. The next regular haul-out allowed me to replace the defective big depth sounder transducer so now I have "port" and "starboard" depthsounders.
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