Topic: Need help

[Sigler]

I remounted the transducer to this spot in the picture, and I am still getting bubble interference. If I drop it down to the next level I'm afraid it will get broke of or that roller will knock it of. But I want it to work right what would you do?

[sonar2000]

It seems like a good place to get bubbles... You  might consider an tilting mount like some of the other guys have done.  Or a pole that raises and lowers.
There have been some interesting pictures here of how guys have made such a mount.
chuck

[stillbear]

Sigler are you on plane or idling. If both I would mount the transducer on a shield from scapes .
And epoxy a 2-d transducer in the floor of the boat.     Gary

[sonar2000]

Good idea Gary......it does seem that there is a problem with the HDSI above trolling speed.
We seem to have more folks going with thru the hull for planeing speeds.

Sigler.  You might check out a thru the hull and a y cable. 
Jolly Roger posted some where about a splitter with a switch....

chuck

 

[Sigler]

When I'm at idle is when I notice the bubble trail. I'm going to try and tilt the transducer up and down to see if that helps.

[TazzMan]

I have the same type of Hull on my bass boat and I have mine mounted on the lower step.  I still read bottom at 30mph.  I have it tilted down slightly. It is just to the left side ot the roller and remeber it will kick up if you bump it.  I tried it on the upper step to but like you i had the same problem and anything above idle i could not read at all.   Hope this helps you.

[Humminbird_Greg]

If you are attempting to get a depth reading at planning speeds you will have to mount the HDSi transducer on the lowest point on the transom/step.  Unfortunately this puts that big HDSi transducer right in front of the lower unit of the motor and the transducer can cause an air cavity to form at higher boat speeds.  We have had reports where this air pocket prevents the intake of cooling water and/or allows the prop to slip in the air and not bite into the water.  This combined with wanting to keep the $275 HDSi transducer safer draws many to go the two transducer installation route: the HDSi mounted off the jackplate or up on the transom where the Si sonar will work but keep the HDSi transducer out of harms way plus an inside-the-hull DualBeam (XP-9-20) transducer both connected to the AS-Si-DB-Y cable.