Thread: Need Transducer Advice

Originally Posted by Cane Pole

This little plastic piece stopped the rooster tail and allowed me to run WOT without loosing bottom contact.

Don't ask me how it works. It might (in effect) kinda extend the length of the hull bottom. I don't know crap about it.

Tom, I'm assuming the concept of this is to force water (that wants to rooster tail over the ducer) down under it to fill a water void? You got a side view of this invention?

Originally Posted by EDDY CREEK BANDIT

My Tracker is the same. I mounted on the step below where this is mounted. No problems at top in. Around 50 mph.
THE BANDIT

Looks like down there, it's vulnerable to getting torn off a lot quicker than on the transom........I don't know?? I fish stump fields a lot, and I really don't want to think about putting it down there. It comes back to me not understanding why there should be that much difference in Humminbird and Lowrance skimmer transducers' sensitivity when it comes to keeping a signal through the water void at fast speeds......and they are located in the same exact place. I knew I shoulda listened more in Physics........

Originally Posted by luvjign

Tom, I'm assuming the concept of this is to force water (that wants to rooster tail over the ducer) down under it to fill a water void? You got a side view of this invention?

Nope, but I can get a pic. IBNFSHN posted one made of aluminum some time ago. I just used the idea and reduced the size of deflector.
I used a pint tupperware container (built in right angles, no bending). Made with scissors. I took the transducer off and drilled holes the pattern of the hull in the plastic and mounted the transducer back over the tupperware. Transducer mount holds tupperware in place.

This make any sense?

Want hurt to try. Cheap. Use neighbors tupperware. I don't know why it worked.

Maybe Bill will repost the metal deflector pic. It was easy to see how to make one from his pic.

Here is the IBNFSHN link.

http://www.crappie.com/gr8vb3/showth...ghlight=iboats

Originally Posted by Cane Pole

This make any sense?

Got'cha..........gonna try it before I go drillin and cuttin...........or maybe just get me a Paul to ride on the back/left when I go
Thanks for the help.

Originally Posted by luvjign

OK transducer experts, I need some help. I replaced a Hummingbird finder on my console with a Eagle Fishmark 480. I know that the manual calls for mounting the transducer where the midway point is in line with the bottom of the hull. I've ran these same transducers on jon boat transoms with no problem. This one is mounted in the same exact place as the HB transducer. The problem is, after 10 mph, it loses the signal, and you know what happens then. It's a Tracker, and it has what Cane Pole probably was asking about on another thread (step hull), and it does rob the bottom of the transom in the transducer area of water that normal hulls don't have. I've moved it up about 1/2" and down about 1/2" with no results change. Looks like I may need to either modify the exsting bracket to go either way any more, or drill more holes. You fellas got a clue as to why I'd need to go lower than this, given the HB transducer wasn't that low??

As Canepole suggested, drop the back of the transducer one notch to get it pointed just slightly forward to help eliminate air bubbles. Also, lower it more to get it in cleaner water. It won't be perfect, but will work up until about 25 mph.





The installation of the 997 transducer uses the same holes in the transom as the old Lowrance transducer. I made an adapter plate to mount the new transducer and pick up the old holes.

Originally Posted by PanMan_VA

As Canepole suggested, drop the back of the transducer one notch to get it pointed just slightly forward to help eliminate air bubbles. Also, lower it more to get it in cleaner water. It won't be perfect, but will work up until about 25 mph.

Keith, I tried lowering it, tilting it, etc....but for some reason, the void created by the step hull leaves the ducer for the Eagle with too much air. After about 8 MPH, it freezes. The cheap H'bird that came on the boat never had this problem (with it's ducer mounted in the exact same location) running 47 MPH..........Again, it was the get-by model that comes on the Tracker boats, but it had a bad sweating problem internally, and finally died. Found an Eagle 480 on sale to put in it's place, and was hoping I would not have this problem, but did expect to.