Thread: Humminbird 596c HD DI

Originally Posted by coastal bend

I have the 597 on the trolling motor(mg) and was having interference problems. It worked fine in 18 to 20 ft of water but when I move to 15 ft and less of water it went haywire. I put p 11 power cable on and there was alot of improvement untill I got into 4 to 6 ft of water then it would mess up again. I then put a piece of rubber between the transducer and the trolling motor and that took care of the problem. It works fine now. I tried these cures from reading other post on interfence problems. The other thing I noticed that if you move the trolling motor to fast it will mess up but I'm still learning how to use it so that might be normal. this is a picture from the first time I used it.

This issue could very well be normal because of the shape of the DI sonar beam....

You have to remember that the sonar beam is very narrow front to back...but very wide side to side....

Try to picture a chinese folding fan opened up pointing straight down perpendicular to the xducer....

Turning the TM with this shape sonar beam could cause distorsion in the image that may be seen as something similar to an interference problem....

Rickie

Rickie is right; the DI beam will distort when you turn the trolling motor quickly just like the Si sonar will. In fact the 2D sonar does as well but we are used to it and really don't notice it.

Just got one Thursday.Got it on the little boat,going to try it out this week if gas don't hit $4.00

"Would the DI unit monted on the jackplate interfere with the trolling motor unit? I have never had this happen before with regular sonar.
Thanks Greg, I will try this next time out."

""Correction" I meant to say SI unit mouted on the jackplate."

No but it could happen the other way around bigminner, but only if the DI unit was turned 90 degrees to the right or left and probably only in deeper water and when over a hard bottom.

does anybody have any pictures of brush piles using the DI, either HB or LOW? I am thinking about getting one in the near future and the only pics i've seen are of standing trees.

The transducer on my boat is positioned on the gunnels away from any motor ,as seen on pic, beside sonar .still the depth jumps about when i enter shallow water .

I have the 570di and do not have this problem yet. I do know on a trolling motor mount you want the pointed end of transducer toward the front of the motor this looks backwards but will help in shallow water. They say the transducer is two directional but it seems to work better this way. Also to minimize on skewed images when moving trolling motor set screen speed to 1. and run your sensitivity at 9 for the D.I...The 570 is not color so I use the dark screen with the light on 5 on the contrast on 6. The 500 series from humminbird will change the fishing as we see it today. Two reason it affordable and it works greatThumbs Up. It reminds me when the super sixty flasher came out, it change the way people fished back then because they knew what they were fishing.

Fishfryed

Originally Posted by Fishfryed

I have the 570di and do not have this problem yet. I do know on a trolling motor mount you want the pointed end of transducer toward the front of the motor this looks backwards but will help in shallow water. They say the transducer is two directional but it seems to work better this way. Also to minimize on skewed images when moving trolling motor set screen speed to 1. and run your sensitivity at 9 for the D.I...The 570 is not color so I use the dark screen with the light on 5 on the contrast on 6. The 500 series from humminbird will change the fishing as we see it today. Two reason it affordable and it works greatThumbs Up. It reminds me when the super sixty flasher came out, it change the way people fished back then because they knew what they were fishing.

Fishfryed

Do you mean the pointed end should face towards front of boat,and when moving quickly set screen speed to 1.Thankyou.