Why does it look like this?

Hopefully you can tell what I’m talking about. This is about 17’ of water and I should have a large dark space that shows under the boat on SI but for some reason it is cloudy. It has been fine and I haven’t changed anything to make it do like that. Now chirp was on so I changed the frequency to 400 and it changed to how it was supposed to look. I’m just wondering why it was looking like that with chirp on in fairly deep water?Attachment 338565


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This time of year an algae bloom can really be accentuated by the CHIRP frequencies or MEGA imaging ... But I have never seen one quite that severe in the water column ...

Do you have access to another head unit you could try connected to that xducer ...??

Rickie

Quote:

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Originally Posted by rnvinc

This time of year an algae bloom can really be accentuated by the CHIRP frequencies or MEGA imaging ... But I have never seen one quite that severe in the water column ...

Do you have access to another head unit you could try connected to that xducer ...??

Rickie

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No afraid not. I could see that being algae/vegetation in the water. There was quite a bit of grass floating around in it yesterday.


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Quote:

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Originally Posted by rnvinc

This time of year an algae bloom can really be accentuated by the CHIRP frequencies or MEGA imaging ... But I have never seen one quite that severe in the water column ...

Do you have access to another head unit you could try connected to that xducer ...??

Rickie

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No afraid not. I could see that being algae/vegetation in the water. There was quite a bit of grass floating around in it yesterday.


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Sorry about all of the double posts


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This is of no help, but my Helix 7 si looked exactly the same the other day. But on the next day out, i was normal again. I concluded it must be something in the water stirred up, wind was blowing hard.

Quote:

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Originally Posted by Lancet

This is of no help, but my Helix 7 si looked exactly the same the other day. But on the next day out, i was normal again. I concluded it must be something in the water stirred up, wind was blowing hard.

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Were you at the same lake? And was there a lot of trash in the water?


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Yes it was the same lake 2 or 3 days later. There was not any noticeable trash in the water.

A lot of pine tree pollen falling here in North Louisiana. Not sure if that could be dispersed in the water and that could have been an issue for me.

Algae/pollen. See the same thing here every year. Yes mine is every bit as bad as yours. Yes I have to run mine in 400 for a few weeks until things start to clear up.

I see this sometimes in the morning but it clears up a lot when the sun gets up later in the day.

Sediment, pollen, debris, even plankton and micro organisms can do that. I wouldn't get concerned unless it doesn't clear up on a new body of water. The first time I used my SI, I used it in the Muddy Mississippi and it looked just like that.. I contacted a friend and asked if something was wrong with my unit, he asked where I was and I said the river, he laughed and said "no, that's normal". I went to a clear water backwater slough where there wasn't any debris in the water and it was crystal clear.

I agree with Ron on the pollen. We had this same discussion last year. I went out on Gaston the other day and my Mega image Helix was cloudy as heck. Give it time and it will self correct.