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Author Topic:   Installing Depthfinder
zotcha posted 12-28-2005 11:45 AM ET (US)   Profile for zotcha   Send Email to zotcha  
Happy New Year to all. Received an Eagle Cuda 168 (pixels) for Christmas and would like to mount the transducer to a small piece of cutting board, then adhere to the transom without adding any new holes.

This unit is UGLY, and not very excited about adding holes to my new console. Thinking about placing head to starboard side of steering wheel. Real question, where do I locate the transducer for least amount of turbulence, and still read bottom at higher planing speeds? Is this even possible with the most expensive units with transom mounted 'ducers?

Mounting to a 1982 15 Sport with a CMC 5" jackplate. Will the jack allow me to possibly place the 'ducer on the lowest part of the transom (center of the hull) which will always be in the water. Or should I expect more turbulence/air there than on one of the outer sponsons? Would like to do it right the first time.

All feedback is welcome. I am "electronically challenged" but can email photos. I cannot post, however. I understand photoshop is free [It is not free. PhotoShop is the copyrighted and protected work of ADOBE. Please do not steal their work--jimh.] , just haven't attempted yet, and resizing pictures would probably be a disaster.

Anyone using this particular unit? I can still exchange it but have heard that the cheaper ones are sometimes better. Saltwater use, trying to stay off the oyster rakes, and read deepholing shrimp, at 30 to 60 feet.

Thanks in advance for any assistance. zotcha.

jimh posted 12-28-2005 12:37 PM ET (US)     Profile for jimh  Send Email to jimh     
Please see:

http://continuouswave.com/whaler/reference/manual9-17/electrical. html#fathometer

for the factory advice on this installation.

where2 posted 12-28-2005 12:41 PM ET (US)     Profile for where2  Send Email to where2     
On my 15' Sport, I installed a small "Johnny Ray" swivel mount to the console, and then picked up a scrap of black starboard from the local plastics shop. This way, I have 1 common set of holes in the console, and can change out the electronics on the starboard with whatever electronics I own. (currently an Eagle Strata 128+ sounder and a Standard Horizon CP150 chart plotter) The mount swivels to account for reflections on some days.

As for the transom mounting of the transducer, definitely use a sacrificial block of cutting board, Starboard, or whatever. I used two screws from a previous transducer mounting when I installed my sacrificial block, and have not been so thrilled with the performance with the transducer mounted out near the port sponson. I should have mounted the transducer lower on the hull, closer to where I mounted the paddle wheel.

Tom W Clark posted 12-28-2005 12:46 PM ET (US)     Profile for Tom W Clark  Send Email to Tom W Clark     
It may be unattractive but don't let that fool you. Eagle brand units are made by Lowrance, one of the best.

The general rule of thumb is to mount the transducer on the port side of the transom. Do NOT mount it directly in front of the motor in the middle of the transom, it will introduce turbulence.

The Eagle (and Lowrance) units use a "Skimmer" transducer which I think is the best in the business and does not churn the water nearly as badly as a conventional transducer. If there was some reason you really wanted the transducer on the starboard side, I would go ahead and put it there; the Skimmer transducer does not provide much lift at all.

The head unit can be mounted anywhere around the helm that you like, but I suggest you put it as far away from the compass as possible. Electronics can create a significant magnetic field which will throw your compass off.

zotcha posted 12-28-2005 12:57 PM ET (US)     Profile for zotcha  Send Email to zotcha     
Jimh, I have the instructions with the unit but assumed application would be for a standard V hull, and did not want to find out the outer sponsons had not been prime location for other members.

where2, I would love to see what a Johnny Ray looks like. I am visualizing some type of small "lazy Susan". Pictures would be speak a thousand words. I presently have a beautiful console with no holes (except the wheel). I like the idea of swiveling. Will it turn almost 360*, so you could read from the casting platform? That would be the HIT!

Thanks for the advice of going as low as possible on the sponson. The 'ducer/paddlewheel on my Seacraft is flush with the bottom of the hull, but loses depth at about 3500 revs.. Wondering if it is possible to avoid this.

Thank you. zotcha.

jimh posted 12-28-2005 01:12 PM ET (US)     Profile for jimh  Send Email to jimh     
zotcha--the link I pointed you to is not the instructions that came with your fish finder. I pointed you to the instructions from Boston Whaler that came with your boat.
zotcha posted 12-28-2005 02:18 PM ET (US)     Profile for zotcha  Send Email to zotcha     
Thank you, Jimh. zotcha.
where2 posted 12-29-2005 10:56 PM ET (US)     Profile for where2  Send Email to where2     
Photos, always worth 1000 words: http://tfn.net/~wendtm/whaler_dash1.jpg
http://tfn.net/~wendtm/whaler_dash2.jpg
http://tfn.net/~wendtm/whaler_dash3.jpg
http://tfn.net/~wendtm/whaler_dash4.jpg these are the 3.1 megapixel versions, (500kb each), Sorry dial-up users. (The odd PVC pipe supports my mooring cover)


It will swivel 360°, the limiting factor being your cabeling to the unit and your available dash space. Where I have mine mounted, it will not swing 360° because it is mounted too close to the rail, and the antenna on the CP150 is going to be right under the rail (not good for seeing satellites). If you go this route, be sure to sit on the seat and determine whether the steering wheel will be in your line of sight. Having hydraulic steering (Baystar), my wheel is up several inches higher than normal.

The last photo is of the mounting block that stays on the dash. It actually has a rather small foot print. You can find the mounts at www.bassproshops.com using the keyword "Johnny Ray".

zotcha posted 12-31-2005 05:24 PM ET (US)     Profile for zotcha  Send Email to zotcha     
where2, Thank you so much. I appreciate your efforts. That is definately the way I want to go. Those pictures said it all. This site proves more and more valuable every time. Thanks again and a Happy and Healthy New Year to you and your family. Mike.

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