fish finder problem?

we finally got out for a fish at kaikoura this weekend was a bloody great day caught a few fish but not alot of the good stuff.

i started to notice my sounder was showing "fish sign" not far off the bottom which i though might have been tarakihi schooling but after not catching anything we decided to move and try another spot. once at the next spot the same band of "fish sign" was showing on the sounder again. i played around with the gain settings to see if it would go away but no luck, so all day we were plagued by a strip of "fish sign" just above the bottom and then it started to show midwater. it was showing even when on the move.

any idea what is causing it?
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Did you have it running in demo mode?

Try and turn the gain down. As above though fish don't always eat :)

I would say its either what I would call a "feed line" or a thermocline in the water. See them all the time on the commercial sounders

Turn off the fishies symbols and adjust the TVG (if it has that control) to push down the depth where the gain really starts to take effect.
I'll see if I can find a Picture

We often get that and once you have had a dive you know what it is.
Up our way its dirty water really stirred up and can't see a bloody thing.

Get it all the time where "fish" is on the sounder but cant catch a thing, I have no answers.

ok, so, iv always had it show up the fish when theyre there exactly as it was showing, but it was weird that everywhere we went it was showing the exact same reading. we went out to 150m and just used the 50hz and nothing showed

dirty transducer??

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Originally Posted by silentscope

ok, so, iv always had it show up the fish when theyre there exactly as it was showing, but it was weird that everywhere we went it was showing the exact same reading. we went out to 150m and just used the 50hz and nothing showed

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Ah so it was white bait :D

Quote:

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Originally Posted by Gibo

Ah so it was white bait :D

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theres a shit loads of them if it was haha

i probably just need one of you pros to show me how it works.