Attachment 184913Is this just bait fish or does anyone really believe that there is fishing in there?
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Attachment 184913Is this just bait fish or does anyone really believe that there is fishing in there?
"Fish icons" on a 2d image are pretty useless IMHO .... they could just as easily be a wad of baitfish reflecting a strong enough signal to fool the 2d processor into thinking it's all one fish. (program bases icon size on return signal strength)
Of course then I have to admit that I don't care much for 2d capabilities on ANY unit. I think it's a waste of screen space and processing resources. I also don't care much for the green/yellow color palette, and prefer the blue ... but that's just personal preference.
If you tell us what unit you're using, there may be others that have differing opinions due to more experience with that (or similar) unit. I use a Lowrance Elite 5 DSI (DI only) unit, & this is the type of screen images I'm used to seeing on it :
Attachment 184914
Attachment 184916
Attachment 184917
... cp :kewl
I just got the humminbird helix 5 di gps unit. I'm still playing with the settings to figure it all out.
On the DI image, it does look like there may be more than one size fish....and from the shape of the bait ball, it looks like the bait could be under attack.....It could be a mix of bait and crappie.
Some absolutely swear by the fish ID on the Humminbirds.....One of them is Wayne P, and not many know more about using their units than he does.
I don't use it much, but am going to start using it more.
I had a older humminbird that was just sonar and everytime I catfished when it was going off I caught fish. So i realky dint know abut crappie.
That blue color indicates the fish are in the 83Khz beam, not the 200Khz beam. This means they are further off to the side.
If they were in the 200Khz beam they would be orange.
Ok so the cluster I see on the di may not be straight below me?
Here are a few more pics I took that day.Attachment 185033Attachment 185034
Also, in respect to 2d, the fish that show to be directly above and below each other can actually be scattered through out the cone at that point in time.Quote:
Originally Posted by jmart045
Attachment 185037
-danny
Thanks that clears it up I think so 2d is my sonar but the di is actually right below me from side to side.
While the 2D sonar is a circular cone shaped beam, the DI is a very thin slice front to back, but 45 to 75 degrees to the side depending on the frequency used and whether setting is wide or narrow.Quote:
Originally Posted by jmart045
So, the fish you see on DI could be quite a bit off to the side depending on water depth and settings.
Quote:
Originally Posted by BobB
X2
I didn't use fish ID much until I read the post about it over at bbcboards.net. I am not a member there so I can't readily find the post to give you a link. If you will find and read it...and look at his images I think you will turn fish ID on and leave it on.
Regards
Thanks that helped alot! Sank a few trees and now I got the feel for it.
:ThumbsUp Feel free to post back with more pics......We LIKE picsQuote:
Originally Posted by jmart045
Have to remember the number you see for the fish is the distance he is from the transducer. If he is right under you then that is also the depth he is at, but if he is way off to the side he could be several feet higher in the water.
Attachment 186024
Got better pics on humminbird just forgot to get them off
You gave away your GPS co-ordinates on that one.:biggrin
That will be alright. It will probably be swept away in the spring when the lake floods! ;)
If I saw the first image you posted I wouldn't slow down but the image crappieppapy posted would have me dropping the trolling motor.
Just got down imaging for Christmas so haven't got to do alot of scanning. But starting to sink trees "multiple spots" and getting use to DI.
Check this thread out & specifically the chart/picture I posted : http://www.crappie.com/crappie/side-...dsi-questions/Quote:
Originally Posted by jmart045
2d is a cone shaped sonar ping
DI is a narrow fan shaped sonar ping
Both register the image as X number of feet "deep" ... when, in reality, X number of feet is a measurement of distance from the transducer to the object, regardless of where it is within the cone or fan shaped sonar ping.
This chart may help, also, as it shows the different shapes and dimensions of each sonar beam type:
http://i1057.photobucket.com/albums/...ps5d77b127.png
... cp :kewl
Thanks that pic helps alot. Mine is on my pontoon so just trying to feel out how far out to the side of the boat it goes. Also got some marker bouys and figured when I see something just toss out there and fish about 15 feet around it is goino to be my plan.