What sensitivity for an Eagle 320

BigPoppa

I was cruising around looking for some brush piles and I get confused with what I am seeing on my finder. I was cruising through an area where I know there are some brushpiles. If I have my finder anywhere above about 70% I see alot of solid black splotches on the screen at all depths. It doesn't look anything like fish, unless there are jellyfish in Lavon now.

So I got over what I was pretty sure was a brushpile and I marked it on my GPS. I then made passes over it while adjusting the sensitivity. When I backed it down to a point where the blotches on the screen went away, I only see one blotch about 5 feet off the bottom. I can only imagine that this is the top of a brush pile.

The problem is that I really have no confidence that I am actually seeing a brushpile. I guess in retrospect I should have just dropped a marker and tried to see if I could feel the brush with a hookless slab. But my main question is why am I seeing these blotches. I really don't think they are electrical interference as they go away when I get some speed. I've watched Ernest's dvd and seen others post real world pictures of brush piles. Their screens don't seem to have all the crud in the water that I am seeing.

BTW, this is a relatively new Eagle 320

Wylie Crappieman · Posted: Mon, Aug 18 2008 01:50 pm Post subject:

I'm having the same issues, and I would like answers to this as well..I thought it was just because I had it on my my tube..
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Lord, can I go fishin?

After you do your chores son.

Yessir..Thank you!

flounder · Posted: Mon, Aug 18 2008 02:13 pm Post subject:

I run it around 72% sometimes up to 80% and down to 68%. The best thing I think is to post some screen shots. A blotch in someones mind might be a big spot or a tiny spec. A picture will be worth a thousands blotches

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Mike B

John Wester · Posted: Mon, Aug 18 2008 02:38 pm Post subject:

I run mine on 82-84%, is the auto sens on as well?

BigPoppa · Posted: Mon, Aug 18 2008 03:46 pm Post subject:

I have tried it with both the auto sensitivity and manually changing it. I will try getting some pictures the next time out. As far as the size of the blotches they are relatively dark and about 1/8th to 1/4" big.

Deadweight · Posted: Mon, Aug 18 2008 04:29 pm Post subject:

I got the same one after many recommendations on here. I have the same problem you do, exactly like you are describing. I pretty much just use it for the depth now.

Wylie Crappieman · Posted: Mon, Aug 18 2008 04:31 pm Post subject:

I don't think it's the machine.. I just think it is a matter of not setting it to match the vessel. I don't know./
_________________
Lord, can I go fishin?

After you do your chores son.

Yessir..Thank you!

Jerry · Posted: Mon, Aug 18 2008 06:13 pm Post subject:

I run my sens. on my LMS 320 at 90-95%. My eagle 480 about 80%. That will be different on each set up. Auto works but I like it higher than Auto.

The best way to understand what you are seeing is to run over something you know. IE, your own B'p...

The other is to mark it and go back and drop a jig down and see if you hang up.
Forget the gps until you know for sure it is brush.
There are areas where Shad are so thick they just black out the screen. I run into that. The color units will help.

The harder objects will look like the bottom. The softer objects(fish) will be darker.

Once I get my new boat, I'm wanting to make a video on reading/understanding your electronics. I run Lowrance so Eagle will be the same.

We are hoping to have some on the water seminars along with seminars at a pavilion on Lavon in November. If so, you might want to come out and get some pointers....
_________________
Jerry
Bee Ready Pro Staff
ProAnglerTackle Pro Staff
www.ProAnglerTackle.com

BigPoppa · Posted: Tue, Aug 19 2008 08:38 am Post subject:

Definately would want to come to one of those seminars. I was thinking that they might be shad but I seem to see them everywhere.

I'm wondering if messing with the greyline would help? It seems that all the blotches on my screen are dark. Maybe greyline would help differentiate a ball of shad from structure.

Capt. Larry · Posted: Tue, Aug 19 2008 08:51 am Post subject:

I would like to attend.
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Capt. Larry

Capt. Larry's Guide Service
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972-442-6847
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BBQMan · Posted: Wed, Aug 20 2008 08:49 pm Post subject: depth finder

If you have time, go by Bass Pro, Garland, and talk to Chuck in marine electronics. He seems to really know these units and should be able to shed some light on your problem.

Fish Hook · Posted: Sun, Aug 24 2008 12:24 am Post subject:

I certainly would like to learn more about setting and reading my fish finder. I have been messing around with it more often these days but could really use some tips and poiters!
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You gotta go fishin to catch some fish....

JiggHead · Lunker Joined: 10 Mar 2007 Posts: 57 Status: **Offline!**

John Wester fancy seeing you here Mr Pro Mod Dragster racer