Crazy Depth Finder

[twodzusfittings]

I have the original Moor Depth Finder on my boat. Now and again it goes whacky giving me multiple zero's to depths of 139. Then a few blinks and its reading normal. I've checked it out with a new transdeucer and it still behaves the same. Question to the knowledgeable. Is this worth having the instrument repaired or is it better to get a new one? New, they are about $275-295, pending who has them in stock.

 

[Ian McGain]

I had mine repaired and it cost about $125.00 several years ago. You can replace with a fish finder that will give you more info for less than that.

 

[Chris14830]

Hi, this is probably not your problem, but mine went nuts once and it turned out that a beer can had rolled up against the transducer in the hold!
-Chris

 

[Sailm8]

I had an old Agua Signal (I think) that did the same thing. Turned out to be corrosion on a connector. Cleaned it all was well.

 

[twodzusfittings]

Just read the replies. Cleaned the RCA jack connector. At the moment its behaving. Lets hope Sailm8's answer resolves the issue. I keep you posted. Thank you all for your input.

 

[Don12364]

Am interested to know whether it is a thru hull transducer mounting or an in hull one as there might be a logical explanation.

(BTW many years ago I was Chief Eng for a Raytheon subsidiary here in England and spent some time at their S. SanFrancisco plant designing a deep sea paper chart recording echo sounder for the fishing fleet down to 600 feet!)
Rgds.

 

[twodzusfittings]

It's a thru hull transducer. Specifically the Moor LDC

http://www.esgdirect.com/sailing.html