Nitro Z19 Garmin gt36/56 transducer interference

[bishoptf]

I posted about my new boat and rigging it up, seems like I am getting some interference which appears to be from the jackplate on the port side water column when imaging. When I am on deep lakes it's not really noticeable since its towards the top of the water column but I started fishing one of my smaller lakes that is pretty shallow and its much more noticeable. I've attached some pictures but really haven't found many folks talking about issues with nitro boats but from what I have found is that it's usually caused by the jackplate even when the transducer is below the jackplate, I have moved it down several times and its well below the jackplate but the issue remains. Most talk about a splash/holeshot cover for the jackplate but given this is a slidemaster I do not think they make one. I even looked at the z19pro's at basspro that have the lowrance transducer mounting and it's pretty much in the same location, right now probably a little lower.

 

If anyone has had this issue in the past would be curious to know how you resolved, thinking of trying to make a cover for the slidemaster but not sure what my other options would be.

 

Thanks 

[bishoptf]

Let me ask this, if there are any z19 pro boat owners if they could take a picture of the lowrance side imaging transducer on the back of there boat I would appreciate it. Appears that none of my local Bass Pro Dealers have any on the show room. I've tried to look at some pictures online but it appears from the factory they mount the transducer on the side but under the jackplate, appears that the transducer is halfway under the side of the jackplate but would be nice to have some better pictures. If that is the case I can move mine around to mimic that location.

[12poundbass]

Looks like it’s clearing the jackplate but wouldn’t clear your motor.

[bishoptf]

27 minutes ago, 12poundbass said:

Looks like it’s clearing the jackplate but wouldn’t clear your motor.

Motor in this case was tilted up, from what ive read it hits the other side and bounces back and continues. I found some pictures of how they mount the lowrance transducers and they mount it under the jackplate, more to the left. Appears to be about halfway under the edge of the jackplate, going to turn my bracket around and make some modifications and see how that works, 10" jackplate gives me plenty of room. Trimming all the way down and turning still has plenty of clearance, will see gow that works. 

[12poundbass]

I see it’s up in the picture but is it when you’re idling around the lake using your graph? You’re getting interference from the left side, it appears the jackplate isn’t in the way so it’s most likely your motor in my opinion.

[bishoptf]

21 minutes ago, 12poundbass said:

I see it’s up in the picture but is it when you’re idling around the lake using your graph? You’re getting interference from the left side, it appears the jackplate isn’t in the way so it’s most likely your motor in my opinion.

Yeah its a small lake, trolling motor only and they like you to have the engine tilted up and out of the water sonin this case the motor not even close. Going to try to flip in to the inside and see if that makes any difference.

[Todd Driscoll]

Your initial suspicion regarding the lack of a bottom/splashplate cover on the SlideMaster jackplate is almost certainly the cause of your issue.  Beam kickback from within the jackplate frame is most likely causing the interference you are only seeing on the shallow portion of the left SideVu return.