Running Helix 12 MDI G2N at bow with an Ultrex and lowQ tranducer.. Last 2 times out depth reading is way out of ballpark and picture if any is very degraded both 2D and DI, I tried restore defaults and every adjustment I could think of including changing the transducer frequencies. Today I inadvdertently hit the generic transducer in the sonar menu and wala, 2D depth reading and image although not great was there. Swithced out of Generic ducer and went right back to jibberish. Am I correct in assuming the generic transducer was the ultrex built in ? Very frustrated. Good news I am getting better at intrepreting 360 out of necessity.