On my console Elite TI 12 seems the "surface noise" is very wide and seems to extend down to 7 ft. When the bottom line is in the noise I do not get a depth reading. When the bottom line is below the noise and I see "white space" I will get a depth reading. The depth reading is accurate and everything seems fine below the surface noise - good returns and detail. I am running a TotalScan on the transom and a shoot through hull with a Y cable. The Side and down scan do not seem to have the noise and have clear images. I do not see this noise on the bow with its TotalScan.
Is this a setting issue or maybe a bad hull transducer?