I have a relatively inexpensive portable fishfinder,have had it for 6 years now and still don't believe the hundreds of fish swimming across the screen are actually fish.I've become to trust the depth reading only.My question is -does the unit sense live creatures or does it pick up "objects" underwater such as seaweed floating around,etc.I never know when there are actually fish under me or just underwater garbage.
Reading a fishfinder
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The machine will not differentiate between fish and other objects in the water,.....the fish icons are just a gimmick.
You may have a sensitivity button on your machine that will allow you to decrease sensitivity so you don't pick up every piece of floating debris under the boat.
you can probably shut off the fish icons too which will help.
when the sonar picks up fish they look like upside down boomerangs on the screen......bait will look like a cloud.
spend some time futzin with it and you should learn to use it well enough.
You may have a sensitivity button on your machine that will allow you to decrease sensitivity so you don't pick up every piece of floating debris under the boat.
you can probably shut off the fish icons too which will help.
when the sonar picks up fish they look like upside down boomerangs on the screen......bait will look like a cloud.
spend some time futzin with it and you should learn to use it well enough.
My sensitivity is always turned all the way down.The fish come up as actual fish shapes on screen.I guess there is no way to tell fish from debris?I do like it for depth- it really comes in handy crossing the reefs and cows when the tide is low
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