Transducer

[justfishing]

I bought two Humminbird Helix 7 depth finders last year one is a DI and the other is a SI. The DI I have at rear console and SI on trolling motor. The problem I am having is that I lose depth on DI at console at 8 MPH, I mounted transducer 18 inches of to the drivers side rear of transom. First run out with it last year I went over another boats wake and transducer broke off the plastic mount. So I don't know if it would pick up depth or not. Got another plastic ( UGH ) bracket and mounted transducer at rear center of transom behind motor like I stated 8 mph and I lose depth. I have contacted Humminbird about a transducer that goes in hull' they tell me that they have one but have to drill hole threw bottom of boat and I am NOT going to do that!!!!! Had Lowerance units before and it had a puck that was glued inside of hull and never had a problem with losing depth readings. Does anyone out there have any thoughts or ideas what to do. I like the depth finders but get frustrated with it. 

Also what your ideas on which depth finder should be where, Should side imaging be on trolling motor or at console.

Thanks in advance

Terry

[moguy1973]

I think the side imaging should be on the console.  I have mine mounted there and a DI unit at the bow.

[cheesemaster]

It might be as simple as the angle that you have the transducer mounted. When I put mine on - I noticed the angle had to be darn near perfect for it to read accurately. 

[Royal Blue]

I've been told that you want the SI at the helm.

[lojack]

My 10 year old boat came with Lowrance graphs and, 2 years ago, I switched to Humminbird SI/DI units.  I mounted my transducer for the console unit on my jackplate with a transducer shield and saver.  I then used an adapter to use the already installed in hull transducer puck.  I'm not sure how it works, but your HB will read from the jackplate at slow speeds so you can use the DI and/or SI, but when you increase speed it will automatically switch to the in-hull transducer so you have depth reading at speed.  :Like others have said, I would put the SI on the back so you can idle around areas and mark spots.

Here is a link to an article about the adapter.    http://www.sonarwars.com/convert-lowrance-to-humminbird-2d-sonar/

[justfishing]

Lojack THANKS for this info I do believe this will do what I needed, been looking at the parts on line and I will be ordering tomorrow

[lojack]

If I remember correctly, I got a y cable and the Lowrance/Humminbird convertor.  I still had the Lowrance thru-hull transducer wiring routed to the console so it was a simple click and attach.  Good luck.