Hummingbird Matrix 12 help?

[ggwash21]

I just installed my matrix 12 and when i'm, plained out it graphs a bunch of fish, i was told these are air bubbles. Any info would help the transducer is about 15" away from motor.

 

[cuzner]

Re: Hummingbird Matrix 12 help?

Ya could be that, or a couple of other things,this time of year specialy the heat we have been getting, could be a thermocline, or even seagrass breaking loose. I have the 17 and found if you play with the sensativity, you can get rid of of this, a little. I realy don't rely on mine at speed.<br /><br /> Jim