Side Imaging Help

**arkcrappie** · 06-11-2014, 03:52 PM

Would you be interested in another X135 Speed Trout? I'm selling mine and replacing it with SI!

Chris, correct me if I'm wrong, but the way this was explained to me, you would lose half your depth plus half your boat width?? That may be the wrong calculation, but for the way it was explained the math worked on the example I saw.

I've never seen one of these units working on the water so you could tell me if you turn it on the sky will fall and I wouldn't know the difference.

**mdperson** · 06-11-2014, 04:27 PM

Maybe this will help or just confuse but I will give it a try. We are not actually talking about error but subtracting the water column. The measurement starts from the center of the transducer/boat so you have to subtract that to get your actual feet.
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If you then fold your image in the middle then flatten at the bottom and this is what your actually seeing on your graph.
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Im probably not explaining it as good as the guys from hb, but this is what they have said the last 2 years at the jig show.

**RCC** · 06-11-2014, 04:34 PM

Michael is exactly right. All the water column shows flat and it makes your lines read wrong. If you are looking at your sonar in deepview on a pc. The coordinates will not change until you get outside of the water column. The wide dark spot will have the same coordinates from edge to edge.

**BoarBuster** · 06-11-2014, 04:34 PM

Hey mdperson. Thats sounds right to me.

**Crappie Greg** · 06-11-2014, 04:44 PM

just mark em with a waypoint and go back through em

**Excel 777** · 06-11-2014, 07:22 PM

When u scroll over to mark them it tells exactly how many feet they are from the transducer or my 998 does

**dblevens** · 06-11-2014, 07:53 PM

These things make my head hurt. Is there a class you can take to learn how to use them? SI4 Dummies...

**tcounty** · 06-11-2014, 08:12 PM

Originally Posted by RCC

Michael is exactly right. All the water column shows flat and it makes your lines read wrong. If you are looking at your sonar in deepview on a pc. The coordinates will not change until you get outside of the water column. The wide dark spot will have the same coordinates from edge to edge.

Well that cleared up a lot for me. I just assumed the black under the boat is a cone that side image wouldn't read. For some reason I thought if you were in 20' of water the black area was 20' wide of water not on the screen. So where the image starts is what's under the boat on left and right side?

**Cmj** · 06-11-2014, 08:28 PM

Originally Posted by tcounty

Well that cleared up a lot for me. I just assumed the black under the boat is a cone that side image wouldn't read. For some reason I thought if you were in 20' of water the black area was 20' wide of water not on the screen. So where the image starts is what's under the boat on left and right side?

Exactly. That dark area is just there for contrast so that you can see what is in the water column directly below the boat without having the blue background to confuse you. You can go into your settings and turn the water column off and it will just be a solid blue image with no black column.

**BigRiverMarine** · 06-11-2014, 08:48 PM

Originally Posted by LowePro

Attachment 165106

This is an image from my Humminbird 899. I can see what I would think would be a ball of shad under my boat with what I thot was crappie off to the right of the boat approx 37ft. I shut the motor down and started fishing over them and quickly found out they were white bass, and man was it fun for about a half hour! My question is... How do I determine what kind of fish im looking at when I find em on my graph? And also, what does crappie look like on these things???!!!

Did you catch any crappie? If you did, Thx for the waypoints. Hehehe

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