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Mounting a Second Depth/Fish Finder

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Mark Hofman

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I want to mount a second Hummingbird LCD fish/depth finder display near the bow fishing position, with a transducer mounted to the trolling motor. We already have a Hummingbird display unit we can use off of my father-in-law's boat, but we would need the base, transducer and cables.



My question is this: How do you avoid interference between the two transducers (other than turning one unit off), so that the guy in back can read depth off of the console/transom unit while the guy up front can read off of the bow/trolling motor unit? Is it possible to run both displays simultaneously off of the same transducer, with a selector switch for the console display that lets you choose whether to read off of the trolling motor or the transom transducer?



Any and all advice is appreciated.



Mark
 

Rob LaMoy

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I ran mine on seperate transducers and they ran fine. I am selling them if you are interested. The wide view I have on the bow has 2 transducers, transom or TM mount. The 200DX is only a transom mount transducer.
 

TrepMan

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Mark - I ran an Eagle up front with the Humminbird on the console and have not had one problem with interference. On my last boat I ran Himminbird's at both the console and bow and did not have problems either. In both cases I mounted the front transducer off the trolling motor (both were standard transon mount tranducers, I just bent the bracket a little and used a pipe connector to attach to the trolling motor and plastic ties to attach the cables.



I've also got a wiring diagram and pictures in the Grab Bag.



TrepMan
 

Russ Charles

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Mark, I run a Lowrance X-85 with trolling motor transducer, a Garmin GPS/MAP Sounder with transom mounted transducer, and a Zercom in-dash with thru hull transducer. Most of the time the X-85 and Garmin are running at the same time. Sometimes all 3 are running. I have never seen any interference.



On a previous boat I ran 2 Lowrance units from one transducer with a transducer switch. Only way I'd recommend that setup is if you can't run 2 transducers because of space, location availablity, ect. A transducer switch cost almost as much as a transducer.



Russ
 

Rich D

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Mark,



I just recently added a 2nd finder to my Pro Angler. I have a humminbird on the console with the transducer mounted on the transom, and a Bottom Line on the bow, mounted to the trolling motor. I do not have a problem with interference. I connected mine to the bow light harness which has a "constant" hot wire, and grounded to the boat. I added an in-line fuse to the power cord, just in case. I used the standard transducer and connected it to the bottom of trolling motor with a stainless steel pipe/hose clamp, and used cable ties to attach the transducer to the clamp. It is very secure, and I didn't have to purchase anything special. I will post photos if I ever get the *^$#!@ scanner working!



Rich D
 

TrepMan

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Rich - I did the same thing (using standard tranducer/mount with pipe clamp), you can see the pictures in the Grab Bag.
 

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