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Humminbird 898C HD SI
I have posted this on our state forum and decided to through it out here to see if anyone else is having this trouble or is the norm for this unit. The problem I am having is that once I mark a brush pile I can't seem to get it show very much detail. Meaning no very much definition on branches and it doesn't show any fish. I just sent the unit in for Humminbird to look at it and they said it checked out fine. I have made all kinds of adjustments on it and have even had other people look at it as well. We are unable to get it any better than the snapshots below. All are of the same brush pile.
Maybe I'm looking for to much here. I am not happy at all for something that I have spent this kind of money on.
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The humminbird DI may be lacking some from other brands. Picture number 2 is not that bad. I did circle the fish in the pile for you. It may be tough to see these on the water, but you can pick them out in an environment where viewing is better. Some guys on here may be able to give you tips to get it as good as it can be. I'll try to see if I can find any DI pics from mine.
Attachment 168618
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Your DI shots are typical (and actually quite good)...for the HB SI units...which do not have a "down pointing" piezo element...but instead renders the DI image from the data received in the "side pointing" SI piezoes...
Rickie
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Here's what I was set on. Chart speed 8, DI enhance: sensitivity 12, contrast 1, and definition low. That was the best setting I felt like. One other thing is Humminbird said to change from fresh water to salt water shallow. That made a little difference as in image 3.
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Here's one of the few di pics I have. It is from a 798. It has crappie on vertical structure, and you can see the egg sinker going down to get another fish. Mine don't seem to be any better than yours, but it don't bother me since I rarely use DI. If yours can be helped, there are guru's on here that can help you make it happen. I would start with matching my chart speed with the boat speed. Others may confirm if that is good.
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I guess I just didn't do enough research before I bought. I will rely on DI more than the side for winter time crappie and was hoping for better results than this. Maybe I just need to run a true DI on the front of the boat. Well I have a 597 DI, but need a little better unit than that.
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Quote:
Originally Posted by
ChrisDXT
Now that's what I was hoping out of mine.
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CJ those are pretty good off a 898. Like stated the 898 is not going to interpret DI like the 859 DI unit and give as much detail. Those shots of yours would make me feel great. Others have set the unit up to run a DI xducer as well and get good results. This may be something you could try if you are looking for better than you are getting.
I already had a DI unit before the 898 so if I'm looking for a DI of the structure I just turn that unit on.
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I sure wouldn't be happy with the first one! You mentioned a chart speed of 8, I thought it was better to match the chart speed with the boat speed? Did you try a lower chart speed?
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Go to bbcboards.net and you will find all the info you will need.
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in first and third pic sensitive is too high brighten out the bottom and part of structure,get the slowest speed you can get on big motor and go over it and set chart speed at that speed or slower for better details,then freeze unit and adjust color,sensitive,and contrast till you get the best you can
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I would also get the buddy who has a similar unit to take some screen shots of the same brush and compare the pictures then compare the settings. I think Genec has a valid point with the settings. Worth a shot anyway.
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Thanks for all the info guys. I have done everything you have mentioned. I have frozen the screen and made adjustments. I have matched boat speed with chart speed. I only ran the chart speed up to 8 to widen out the brush pile. I don't believe I did a snapshot of the chart speed set at my boat speed. Reason is that I didn't get nearly as good of picture as what I posted here. These pictures are the best ones after making all kinds of adjustments with screen frozen. I spent 4 hrs with another gentleman out on the lake yesterday just going over this pile and this is the best we could do.
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Well you may be at the point I was with my Lowrance Elite 7 HDI. It simply would not handle the Navionics map card. I had 30 to 90 second delays when I tried to zoom in or out. After about 30 minutes on the phone with Lowrance they agreed to swap out for a HDS7 Gen2 with touch screen for about $225 exchange. That put me a slightly over half price for that unit and even though I did not want to spend more on a DF I could not turn down that offer. This unit even has side scan if I upgrade the transducer, which I will do when I save some mote pennies.
Might be time for HB to put their cards on the table and make it right for you.
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Can you maybe change the color scheme to make images better looking?
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Nothing wrong with his unit, just trying to get something it's not intended for. I wound recommend an 859 for your DI. This is a SI unit, which excels in covering water while scouting to find structure. Then you can get more detailed pictures with a DI unit.
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When scanning structure directly under the boat (with a HB SI unit)...try setting the "DI Width" setting to "Narrow" under the "Sonar" tab....
This tells the processor to display into the DI image only those reflections "common" in both the left and right SI beams....the "overlap" of the SI beams right under the xducer...
Rickie
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I believe your unit is working properly. Ive had my best luck running the contrast from 4 to 7 with the chart speed always more than the boat speed, but when all is said and done, di from si is exactly that, di from si.dedicated di will always out perform di from si (on small, weak return objects).
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I have had some very good image on di of 998 ,but most of the time it is lacking of what i would like and when all is said its like kosmo said ,it is di from si and will not compare with dedicated di on a regular basic,nor was it built to,i will be trying to get mine to be closer to dedicated di soon,thanks to komos,rickis and others,oh well ,we will see
